Topic 1 - Exam A
A company is implementing an application on Amazon EC2 instances. The application needs to process
incoming transactions. When the application detects a transaction that is not valid, the application
must send a chat message to the company's support team. To send the message, the application needs
to retrieve the access token to authenticate by using the chat API.
A developer needs to
implement a solution to store the access token. The access token must be encrypted at rest and in
transit. The access token must also be accessible from other AWS accounts.
Which solution will
meet these requirements with the LEAST management overhead?
- A. Use an AWS Systems Manager Parameter Store SecureString parameter that uses an AWS Key Management Service (AWS KMS) AWS managed key to store the access token. Add a resource-based policy to the parameter to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Parameter Store. Retrieve the token from Parameter Store with the decrypt flag enabled. Use the decrypted access token to send the message to the chat.
- B. Encrypt the access token by using an AWS Key Management Service (AWS KMS) customer managed key. Store the access token in an Amazon DynamoDB table. Update the IAM role of the EC2 instances with permissions to access DynamoDB and AWS KMS. Retrieve the token from DynamoDDecrypt the token by using AWS KMS on the EC2 instances. Use the decrypted access token to send the message to the chat.
- C. Use AWS Secrets Manager with an AWS Key Management Service (AWS KMS) customer managed key to store the access token. Add a resource-based policy to the secret to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Secrets Manager. Retrieve the token from Secrets Manager. Use the decrypted access token to send the message to the chat.
- D. Encrypt the access token by using an AWS Key Management Service (AWS KMS) AWS managed key. Store the access token in an Amazon S3 bucket. Add a bucket policy to the S3 bucket to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Amazon S3 and AWS KMS. Retrieve the token from the S3 bucket. Decrypt the token by using AWS KMS on the EC2 instances. Use the decrypted access token to send the massage to the chat.
Correct Answer:
D
🗳️
A company is running Amazon EC2 instances in multiple AWS accounts. A developer needs to implement
an application that collects all the lifecycle events of the EC2 instances. The application needs to
store the lifecycle events in a single Amazon Simple Queue Service (Amazon SQS) queue in the
company's main AWS account for further processing.
Which solution will meet these requirements?
- A. Configure Amazon EC2 to deliver the EC2 instance lifecycle events from all accounts to the Amazon EventBridge event bus of the main account. Add an EventBridge rule to the event bus of the main account that matches all EC2 instance lifecycle events. Add the SQS queue as a target of the rule.
- B. Use the resource policies of the SQS queue in the main account to give each account permissions to write to that SQS queue. Add to the Amazon EventBridge event bus of each account an EventBridge rule that matches all EC2 instance lifecycle events. Add the SQS queue in the main account as a target of the rule.
- C. Write an AWS Lambda function that scans through all EC2 instances in the company accounts to detect EC2 instance lifecycle changes. Configure the Lambda function to write a notification message to the SQS queue in the main account if the function detects an EC2 instance lifecycle change. Add an Amazon EventBridge scheduled rule that invokes the Lambda function every minute.
- D. Configure the permissions on the main account event bus to receive events from all accounts. Create an Amazon EventBridge rule in each account to send all the EC2 instance lifecycle events to the main account event bus. Add an EventBridge rule to the main account event bus that matches all EC2 instance lifecycle events. Set the SQS queue as a target for the rule.
Correct Answer:
D
🗳️
TeeTheMan
3 months, 1 week agoKillThemWithKindness
3 months, 3 weeks agoKillThemWithKindness
3 months, 3 weeks agoezredame
5 months, 1 week agoBibay
6 months agoihebchorfi
6 months, 1 week agoMrTee
6 months, 2 weeks agoshahs10
7 months, 1 week agohaaris786
7 months, 3 weeks agoaragon_saa
7 months, 3 weeks ago
An application is using Amazon Cognito user pools and identity pools for secure access. A developer
wants to integrate the user-specific file upload and download features in the application with
Amazon S3. The developer must ensure that the files are saved and retrieved in a secure manner and
that users can access only their own files. The file sizes range from 3 KB to 300 MB.
Which
option will meet these requirements with the HIGHEST level of security?
- A. Use S3 Event Notifications to validate the file upload and download requests and update the user interface (UI).
- B. Save the details of the uploaded files in a separate Amazon DynamoDB table. Filter the list of files in the user interface (UI) by comparing the current user ID with the user ID associated with the file in the table.
- C. Use Amazon API Gateway and an AWS Lambda function to upload and download files. Validate each request in the Lambda function before performing the requested operation.
- D. Use an IAM policy within the Amazon Cognito identity prefix to restrict users to use their own folders in Amazon S3.
Correct Answer:
D
🗳️
Bibay
6 months agogrzess
5 months, 3 weeks agoMrTee
6 months, 2 weeks agohaaris786
7 months, 3 weeks ago
A company is building a scalable data management solution by using AWS services to improve the speed
and agility of development. The solution will ingest large volumes of data from various sources and
will process this data through multiple business rules and transformations.
The solution requires
business rules to run in sequence and to handle reprocessing of data if errors occur when the
business rules run. The company needs the solution to be scalable and to require the least possible
maintenance.
Which AWS service should the company use to manage and automate the orchestration of
the data flows to meet these requirements?
- A. AWS Batch
- B. AWS Step Functions
- C. AWS Glue
- D. AWS Lambda
Correct Answer:
D
🗳️
sharma_ps93
2 months agocasharan
2 months, 1 week agopefey26437
1 month, 1 week agohmdev
2 months, 1 week agojayvarma
3 months agoBaba_Eni
5 months, 1 week agoMrTee
6 months, 2 weeks agoMrTee
6 months, 3 weeks agorlnd2000
6 months, 1 week ago
A developer has created an AWS Lambda function that is written in Python. The Lambda function reads
data from objects in Amazon S3 and writes data to an Amazon DynamoDB table. The function is
successfully invoked from an S3 event notification when an object is created. However, the function
fails when it attempts to write to the DynamoDB table.
What is the MOST likely cause of this
issue?
- A. The Lambda function's concurrency limit has been exceeded.
- B. DynamoDB table requires a global secondary index (GSI) to support writes.
- C. The Lambda function does not have IAM permissions to write to DynamoDB.
- D. The DynamoDB table is not running in the same Availability Zone as the Lambda function.
Correct Answer:
D
🗳️
hsinchang
1 month, 4 weeks agoelfinka9
3 months, 1 week agoMrTee
6 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across
multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance
types.
How can the developer incorporate the list of approved instance types in the
CloudFormation template?
- A. Create a separate CloudFormation template for each EC2 instance type in the list.
- B. In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list.
- C. In the CloudFormation template, create a separate parameter for each EC2 instance type in the list.
- D. In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues.
Correct Answer:
D
🗳️
aragon_saa
7 months, 3 weeks ago
A developer has an application that makes batch requests directly to Amazon DynamoDB by using the
BatchGetItem low-level API operation. The responses frequently return values in the UnprocessedKeys
element.
Which actions should the developer take to increase the resiliency of the application
when the batch response includes values in UnprocessedKeys? (Choose two.)
- A. Retry the batch operation immediately.
- B. Retry the batch operation with exponential backoff and randomized delay.
- C. Update the application to use an AWS software development kit (AWS SDK) to make the requests.
- D. Increase the provisioned read capacity of the DynamoDB tables that the operation accesses.
- E. Increase the provisioned write capacity of the DynamoDB tables that the operation accesses.
Correct Answer:
BD
🗳️
ronn555
5 days, 11 hours agoashley369534
3 weeks, 5 days agocai123456
1 month, 1 week agomisa27
1 month, 3 weeks agomrsoa
2 months, 1 week agolove777
2 months, 1 week agoaanataliya
2 months, 2 weeks agoninomfr64
2 months, 3 weeks agojipark
3 months agoKillThemWithKindness
3 months, 3 weeks agoawsstark
3 months, 3 weeks agotttamtttam
3 months, 4 weeks ago
A company is running a custom application on a set of on-premises Linux servers that are accessed
using Amazon API Gateway. AWS X-Ray tracing has been enabled on the API test stage.
How can a
developer enable X-Ray tracing on the on-premises servers with the LEAST amount of configuration?
- A. Install and run the X-Ray SDK on the on-premises servers to capture and relay the data to the X-Ray service.
- B. Install and run the X-Ray daemon on the on-premises servers to capture and relay the data to the X-Ray service.
- C. Capture incoming requests on-premises and configure an AWS Lambda function to pull, process, and relay relevant data to X-Ray using the PutTraceSegments API call.
- D. Capture incoming requests on-premises and configure an AWS Lambda function to pull, process, and relay relevant data to X-Ray using the PutTelemetryRecords API call.
Correct Answer:
B
🗳️
Kowalsky95
1 month, 1 week agoBibay
6 months agoUntamables
7 months, 3 weeks agohaaris786
7 months, 3 weeks agoaragon_saa
7 months, 3 weeks ago
A company wants to share information with a third party. The third party has an HTTP API endpoint
that the company can use to share the information. The company has the required API key to access
the HTTP API.
The company needs a way to manage the API key by using code. The integration of the
API key with the application code cannot affect application performance.
Which solution will meet
these requirements MOST securely?
- A. Store the API credentials in AWS Secrets Manager. Retrieve the API credentials at runtime by using the AWS SDK. Use the credentials to make the API call.
- B. Store the API credentials in a local code variable. Push the code to a secure Git repository. Use the local code variable at runtime to make the API call.
- C. Store the API credentials as an object in a private Amazon S3 bucket. Restrict access to the S3 object by using IAM policies. Retrieve the API credentials at runtime by using the AWS SDK. Use the credentials to make the API call.
- D. Store the API credentials in an Amazon DynamoDB table. Restrict access to the table by using resource-based policies. Retrieve the API credentials at runtime by using the AWS SDK. Use the credentials to make the API call.
Correct Answer:
B
🗳️
hmdev
2 months, 1 week agosivuca1
2 months, 1 week agossoratroi
2 months, 4 weeks agojayvarma
3 months agoelfinka9
3 months, 1 week agoKashan6109
3 months, 1 week agotttamtttam
3 months, 3 weeks agoMrPie
4 months agoDevon_Fazekas
6 months agoBibay
6 months agozk1200
6 months, 4 weeks ago
A developer is deploying a new application to Amazon Elastic Container Service (Amazon ECS). The
developer needs to securely store and retrieve different types of variables. These variables include
authentication information for a remote API, the URL for the API, and credentials. The
authentication information and API URL must be available to all current and future deployed versions
of the application across development, testing, and production environments.
How should the
developer retrieve the variables with the FEWEST application changes?
- A. Update the application to retrieve the variables from AWS Systems Manager Parameter Store. Use unique paths in Parameter Store for each variable in each environment. Store the credentials in AWS Secrets Manager in each environment.
- B. Update the application to retrieve the variables from AWS Key Management Service (AWS KMS). Store the API URL and credentials as unique keys for each environment.
- C. Update the application to retrieve the variables from an encrypted file that is stored with the application. Store the API URL and credentials in unique files for each environment.
- D. Update the application to retrieve the variables from each of the deployed environments. Define the authentication information and API URL in the ECS task definition as unique names during the deployment process.
Correct Answer:
B
🗳️
alihaider907
1 month, 3 weeks agojayvarma
3 months agoTee400
4 months, 2 weeks agoMrTee
6 months, 2 weeks ago[Removed]
6 months, 2 weeks agofqmark
7 months ago
A company is migrating legacy internal applications to AWS. Leadership wants to rewrite the internal
employee directory to use native AWS services. A developer needs to create a solution for storing
employee contact details and high-resolution photos for use with the new application.
Which
solution will enable the search and retrieval of each employee's individual details and
high-resolution photos using AWS APIs?
- A. Encode each employee's contact information and photos using Base64. Store the information in an Amazon DynamoDB table using a sort key.
- B. Store each employee's contact information in an Amazon DynamoDB table along with the object keys for the photos stored in Amazon S3.
- C. Use Amazon Cognito user pools to implement the employee directory in a fully managed software-as-a-service (SaaS) method.
- D. Store employee contact information in an Amazon RDS DB instance with the photos stored in Amazon Elastic File System (Amazon EFS).
Correct Answer:
B
🗳️
hmdev
2 months, 1 week agoninomfr64
2 months, 3 weeks agojayvarma
3 months agoBibay
6 months agoaragon_saa
7 months, 3 weeks ago
A developer is creating an application that will give users the ability to store photos from their
cellphones in the cloud. The application needs to support tens of thousands of users. The
application uses an Amazon API Gateway REST API that is integrated with AWS Lambda functions to
process the photos. The application stores details about the photos in Amazon DynamoDB.
Users
need to create an account to access the application. In the application, users must be able to
upload photos and retrieve previously uploaded photos. The photos will range in size from 300 KB to
5 MB.
Which solution will meet these requirements with the LEAST operational overhead?
- A. Use Amazon Cognito user pools to manage user accounts. Create an Amazon Cognito user pool authorizer in API Gateway to control access to the API. Use the Lambda function to store the photos and details in the DynamoDB table. Retrieve previously uploaded photos directly from the DynamoDB table.
- B. Use Amazon Cognito user pools to manage user accounts. Create an Amazon Cognito user pool authorizer in API Gateway to control access to the API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as part of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.
- C. Create an IAM user for each user of the application during the sign-up process. Use IAM authentication to access the API Gateway API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as part of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.
- D. Create a users table in DynamoDB. Use the table to manage user accounts. Create a Lambda authorizer that validates user credentials against the users table. Integrate the Lambda authorizer with API Gateway to control access to the API. Use the Lambda function to store the photos in Amazon S3. Store the object's S3 key as par of the photo details in the DynamoDB table. Retrieve previously uploaded photos by querying DynamoDB for the S3 key.
Correct Answer:
B
🗳️
ihta_2031
7 months, 1 week agopratchatcap
7 months, 2 weeks ago
A company receives food orders from multiple partners. The company has a microservices application
that uses Amazon API Gateway APIs with AWS Lambda integration. Each partner sends orders by calling
a customized API that is exposed through API Gateway. The API call invokes a shared Lambda function
to process the orders.
Partners need to be notified after the Lambda function processes the
orders. Each partner must receive updates for only the partner's own orders. The company wants to
add new partners in the future with the fewest code changes possible.
Which solution will meet
these requirements in the MOST scalable way?
- A. Create a different Amazon Simple Notification Service (Amazon SNS) topic for each partner. Configure the Lambda function to publish messages for each partner to the partner's SNS topic.
- B. Create a different Lambda function for each partner. Configure the Lambda function to notify each partner's service endpoint directly.
- C. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure the Lambda function to publish messages with specific attributes to the SNS topic. Subscribe each partner to the SNS topic. Apply the appropriate filter policy to the topic subscriptions.
- D. Create one Amazon Simple Notification Service (Amazon SNS) topic. Subscribe all partners to the SNS topic.
Correct Answer:
C
🗳️
tttamtttam
3 months, 3 weeks agorlnd2000
3 months, 4 weeks agoSkywalker23
1 month, 1 week agorlnd2000
3 months, 4 weeks agoJeremy11
3 months, 1 week agoBibay
6 months agorobotgeek
7 months agogrimsdev
7 months agoTungNNS
7 months, 1 week agorobotgeek
6 months, 3 weeks agoihta_2031
7 months, 1 week agoshahs10
7 months, 1 week ago
A financial company must store original customer records for 10 years for legal reasons. A complete
record contains personally identifiable information (PII). According to local regulations, PII is
available to only certain people in the company and must not be shared with third parties. The
company needs to make the records available to third-party organizations for statistical analysis
without sharing the PII.
A developer wants to store the original immutable record in Amazon S3.
Depending on who accesses the S3 document, the document should be returned as is or with all the PII
removed. The developer has written an AWS Lambda function to remove the PII from the document. The
function is named removePii.
What should the developer do so that the company can meet the PII
requirements while maintaining only one copy of the document?
- A. Set up an S3 event notification that invokes the removePii function when an S3 GET request is made. Call Amazon S3 by using a GET request to access the object without PII.
- B. Set up an S3 event notification that invokes the removePii function when an S3 PUT request is made. Call Amazon S3 by using a PUT request to access the object without PII.
- C. Create an S3 Object Lambda access point from the S3 console. Select the removePii function. Use S3 Access Points to access the object without PII.
- D. Create an S3 access point from the S3 console. Use the access point name to call the GetObjectLegalHold S3 API function. Pass in the removePii function name to access the object without PII.
Correct Answer:
C
🗳️
A developer is deploying an AWS Lambda function The developer wants the ability to return to older
versions of the function quickly and seamlessly.
How can the developer achieve this goal with the
LEAST operational overhead?
- A. Use AWS OpsWorks to perform blue/green deployments.
- B. Use a function alias with different versions.
- C. Maintain deployment packages for older versions in Amazon S3.
- D. Use AWS CodePipeline for deployments and rollbacks.
Correct Answer:
B
🗳️
zk1200
6 months, 4 weeks agoihta_2031
7 months, 1 week agoUntamables
7 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A developer has written an AWS Lambda function. The function is CPU-bound. The developer wants to
ensure that the function returns responses quickly.
How can the developer improve the function's
performance?
- A. Increase the function's CPU core count.
- B. Increase the function's memory.
- C. Increase the function's reserved concurrency.
- D. Increase the function's timeout.
Correct Answer:
B
🗳️
Majong
5 months, 1 week agoDevon_Fazekas
6 months agoBibay
6 months agoblathul
6 months, 2 weeks agoSyre
6 months, 3 weeks agoMajong
5 months, 1 week agoUntamables
7 months, 3 weeks agoFor a deployment using AWS Code Deploy, what is the run order of the hooks for in-place deployments?
- A. BeforeInstall -> ApplicationStop -> ApplicationStart -> AfterInstall
- B. ApplicationStop -> BeforeInstall -> AfterInstall -> ApplicationStart
- C. BeforeInstall -> ApplicationStop -> ValidateService -> ApplicationStart
- D. ApplicationStop -> BeforeInstall -> ValidateService -> ApplicationStart
Correct Answer:
A
🗳️
Skywalker23
1 month, 1 week agoTony88
2 months agoninomfr64
2 months, 3 weeks agofcbc62d
3 months, 1 week agojipark
3 months, 1 week agoScherbakovMike
5 months, 1 week agoawsdummie
5 months, 1 week agoNagendhar
6 months agoDeaconStJohn
6 months, 2 weeks agoSyre
6 months, 3 weeks ago[Removed]
3 months, 3 weeks agoDeaconStJohn
6 months, 2 weeks agobrandon87
7 months, 1 week ago
A company is building a serverless application on AWS. The application uses an AWS Lambda function
to process customer orders 24 hours a day, 7 days a week. The Lambda function calls an external
vendor's HTTP API to process payments.
During load tests, a developer discovers that the external
vendor payment processing API occasionally times out and returns errors. The company expects that
some payment processing API calls will return errors.
The company wants the support team to
receive notifications in near real time only when the payment processing external API error rate
exceed 5% of the total number of transactions in an hour. Developers need to use an existing Amazon
Simple Notification Service (Amazon SNS) topic that is configured to notify the support
team.
Which solution will meet these requirements?
- A. Write the results of payment processing API calls to Amazon CloudWatch. Use Amazon CloudWatch Logs Insights to query the CloudWatch logs. Schedule the Lambda function to check the CloudWatch logs and notify the existing SNS topic.
- B. Publish custom metrics to CloudWatch that record the failures of the external payment processing API calls. Configure a CloudWatch alarm to notify the existing SNS topic when error rate exceeds the specified rate.
- C. Publish the results of the external payment processing API calls to a new Amazon SNS topic. Subscribe the support team members to the new SNS topic.
- D. Write the results of the external payment processing API calls to Amazon S3. Schedule an Amazon Athena query to run at regular intervals. Configure Athena to send notifications to the existing SNS topic when the error rate exceeds the specified rate.
Correct Answer:
B
🗳️
Ponyi
2 days, 23 hours agojayvarma
2 months, 4 weeks agoUntamables
7 months, 2 weeks ago
A company is offering APIs as a service over the internet to provide unauthenticated read access to
statistical information that is updated daily. The company uses Amazon API Gateway and AWS Lambda to
develop the APIs. The service has become popular, and the company wants to enhance the
responsiveness of the APIs.
Which action can help the company achieve this goal?
- A. Enable API caching in API Gateway.
- B. Configure API Gateway to use an interface VPC endpoint.
- C. Enable cross-origin resource sharing (CORS) for the APIs.
- D. Configure usage plans and API keys in API Gateway.
Correct Answer:
A
🗳️
yashika2005
5 months, 1 week agoTony88
2 months agoyuruyenucakc
2 months, 2 weeks agoUntamables
7 months, 2 weeks ago
A developer wants to store information about movies. Each movie has a title, release year, and
genre. The movie information also can include additional properties about the cast and production
crew. This additional information is inconsistent across movies. For example, one movie might have
an assistant director, and another movie might have an animal trainer.
The developer needs to
implement a solution to support the following use cases:
For a given title and release year, get
all details about the movie that has that title and release year.
For a given title, get all
details about all movies that have that title.
For a given genre, get all details about all
movies in that genre.
Which data store configuration will meet these requirements?
- A. Create an Amazon DynamoDB table. Configure the table with a primary key that consists of the title as the partition key and the release year as the sort key. Create a global secondary index that uses the genre as the partition key and the title as the sort key.
- B. Create an Amazon DynamoDB table. Configure the table with a primary key that consists of the genre as the partition key and the release year as the sort key. Create a global secondary index that uses the title as the partition key.
- C. On an Amazon RDS DB instance, create a table that contains columns for title, release year, and genre. Configure the title as the primary key.
- D. On an Amazon RDS DB instance, create a table where the primary key is the title and all other data is encoded into JSON format as one additional column.
Correct Answer:
A
🗳️
jayvarma
2 months, 4 weeks agoKrok
7 months agoshahs10
7 months, 1 week agoUntamables
7 months, 2 weeks ago
A developer maintains an Amazon API Gateway REST API. Customers use the API through a frontend UI
and Amazon Cognito authentication.
The developer has a new version of the API that contains new
endpoints and backward-incompatible interface changes. The developer needs to provide beta access to
other developers on the team without affecting customers.
Which solution will meet these
requirements with the LEAST operational overhead?
- A. Define a development stage on the API Gateway API. Instruct the other developers to point the endpoints to the development stage.
- B. Define a new API Gateway API that points to the new API application code. Instruct the other developers to point the endpoints to the new API.
- C. Implement a query parameter in the API application code that determines which code version to call.
- D. Specify new API Gateway endpoints for the API endpoints that the developer wants to add.
Correct Answer:
A
🗳️
jayvarma
2 months, 4 weeks agoMrTee
6 months, 2 weeks agoUntamables
7 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A developer is creating an application that will store personal health information (PHI). The PHI
needs to be encrypted at all times. An encrypted Amazon RDS for MySQL DB instance is storing the
data. The developer wants to increase the performance of the application by caching frequently
accessed data while adding the ability to sort or rank the cached datasets.
Which solution will
meet these requirements?
- A. Create an Amazon ElastiCache for Redis instance. Enable encryption of data in transit and at rest. Store frequently accessed data in the cache.
- B. Create an Amazon ElastiCache for Memcached instance. Enable encryption of data in transit and at rest. Store frequently accessed data in the cache.
- C. Create an Amazon RDS for MySQL read replica. Connect to the read replica by using SSL. Configure the read replica to store frequently accessed data.
- D. Create an Amazon DynamoDB table and a DynamoDB Accelerator (DAX) cluster for the table. Store frequently accessed data in the DynamoDB table.
Correct Answer:
A
🗳️
jipark
3 months agobrandon87
7 months, 1 week ago
A company has a multi-node Windows legacy application that runs on premises. The application uses a
network shared folder as a centralized configuration repository to store configuration files in .xml
format. The company is migrating the application to Amazon EC2 instances. As part of the migration
to AWS, a developer must identify a solution that provides high availability for the
repository.
Which solution will meet this requirement MOST cost-effectively?
- A. Mount an Amazon Elastic Block Store (Amazon EBS) volume onto one of the EC2 instances. Deploy a file system on the EBS volume. Use the host operating system to share a folder. Update the application code to read and write configuration files from the shared folder.
- B. Deploy a micro EC2 instance with an instance store volume. Use the host operating system to share a folder. Update the application code to read and write configuration files from the shared folder.
- C. Create an Amazon S3 bucket to host the repository. Migrate the existing .xml files to the S3 bucket. Update the application code to use the AWS SDK to read and write configuration files from Amazon S3.
- D. Create an Amazon S3 bucket to host the repository. Migrate the existing .xml files to the S3 bucket. Mount the S3 bucket to the EC2 instances as a local volume. Update the application code to read and write configuration files from the disk.
Correct Answer:
C
🗳️
ronn555
2 days, 17 hours agosenadevtrd
5 months, 1 week agoUntamables
7 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A company wants to deploy and maintain static websites on AWS. Each website's source code is hosted
in one of several version control systems, including AWS CodeCommit, Bitbucket, and GitHub.
The
company wants to implement phased releases by using development, staging, user acceptance testing,
and production environments in the AWS Cloud. Deployments to each environment must be started by
code merges on the relevant Git branch. The company wants to use HTTPS for all data exchange. The
company needs a solution that does not require servers to run continuously.
Which solution will
meet these requirements with the LEAST operational overhead?
- A. Host each website by using AWS Amplify with a serverless backend. Conned the repository branches that correspond to each of the desired environments. Start deployments by merging code changes to a desired branch.
- B. Host each website in AWS Elastic Beanstalk with multiple environments. Use the EB CLI to link each repository branch. Integrate AWS CodePipeline to automate deployments from version control code merges.
- C. Host each website in different Amazon S3 buckets for each environment. Configure AWS CodePipeline to pull source code from version control. Add an AWS CodeBuild stage to copy source code to Amazon S3.
- D. Host each website on its own Amazon EC2 instance. Write a custom deployment script to bundle each website's static assets. Copy the assets to Amazon EC2. Set up a workflow to run the script when code is merged.
Correct Answer:
A
🗳️
jayvarma
2 months, 4 weeks agoDevon_Fazekas
6 months agoRpod
6 months, 2 weeks ago
A company is migrating an on-premises database to Amazon RDS for MySQL. The company has read-heavy
workloads. The company wants to refactor the code to achieve optimum read performance for
queries.
Which solution will meet this requirement with LEAST current and future effort?
- A. Use a multi-AZ Amazon RDS deployment. Increase the number of connections that the code makes to the database or increase the connection pool size if a connection pool is in use.
- B. Use a multi-AZ Amazon RDS deployment. Modify the code so that queries access the secondary RDS instance.
- C. Deploy Amazon RDS with one or more read replicas. Modify the application code so that queries use the URL for the read replicas.
- D. Use open source replication software to create a copy of the MySQL database on an Amazon EC2 instance. Modify the application code so that queries use the IP address of the EC2 instance.
Correct Answer:
B
🗳️
Skywalker23
1 month, 1 week agoAkash619
2 months, 2 weeks agojayvarma
2 months, 4 weeks agoDevon_Fazekas
6 months agoUntamables
7 months, 2 weeks ago
A developer is creating an application that will be deployed on IoT devices. The application will
send data to a RESTful API that is deployed as an AWS Lambda function. The application will assign
each API request a unique identifier. The volume of API requests from the application can randomly
increase at any given time of day.
During periods of request throttling, the application might
need to retry requests. The API must be able to handle duplicate requests without inconsistencies or
data loss.
Which solution will meet these requirements?
- A. Create an Amazon RDS for MySQL DB instance. Store the unique identifier for each request in a database table. Modify the Lambda function to check the table for the identifier before processing the request.
- B. Create an Amazon DynamoDB table. Store the unique identifier for each request in the table. Modify the Lambda function to check the table for the identifier before processing the request.
- C. Create an Amazon DynamoDB table. Store the unique identifier for each request in the table. Modify the Lambda function to return a client error response when the function receives a duplicate request.
- D. Create an Amazon ElastiCache for Memcached instance. Store the unique identifier for each request in the cache. Modify the Lambda function to check the cache for the identifier before processing the request.
Correct Answer:
B
🗳️
A developer wants to expand an application to run in multiple AWS Regions. The developer wants to
copy Amazon Machine Images (AMIs) with the latest changes and create a new application stack in the
destination Region. According to company requirements, all AMIs must be encrypted in all Regions.
However, not all the AMIs that the company uses are encrypted.
How can the developer expand the
application to run in the destination Region while meeting the encryption requirement?
- A. Create new AMIs, and specify encryption parameters. Copy the encrypted AMIs to the destination Region. Delete the unencrypted AMIs.
- B. Use AWS Key Management Service (AWS KMS) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.
- C. Use AWS Certificate Manager (ACM) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.
- D. Copy the unencrypted AMIs to the destination Region. Enable encryption by default in the destination Region.
Correct Answer:
B
🗳️
Rameez1
3 weeks, 4 days agoCerakoted
3 weeks, 4 days agomanikantaJ
4 weeks, 1 day agosofiatian
1 month, 2 weeks agoAp1011
2 months, 1 week agoNaj_64
2 months, 2 weeks agoNaj_64
2 months, 2 weeks agoKrok
7 months ago5aga
7 months, 1 week agosrikanth923
7 months, 2 weeks agosrikanth923
7 months, 2 weeks agoMarch2023
7 months, 2 weeks agoUntamables
7 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A company hosts a client-side web application for one of its subsidiaries on Amazon S3. The web
application can be accessed through Amazon CloudFront from https://www.example.com. After a
successful rollout, the company wants to host three more client-side web applications for its
remaining subsidiaries on three separate S3 buckets.
To achieve this goal, a developer moves all
the common JavaScript files and web fonts to a central S3 bucket that serves the web applications.
However, during testing, the developer notices that the browser blocks the JavaScript files and web
fonts.
What should the developer do to prevent the browser from blocking the JavaScript files and
web fonts?
- A. Create four access points that allow access to the central S3 bucket. Assign an access point to each web application bucket.
- B. Create a bucket policy that allows access to the central S3 bucket. Attach the bucket policy to the central S3 bucket
- C. Create a cross-origin resource sharing (CORS) configuration that allows access to the central S3 bucket. Add the CORS configuration to the central S3 bucket.
- D. Create a Content-MD5 header that provides a message integrity check for the central S3 bucket. Insert the Content-MD5 header for each web application request.
Correct Answer:
C
🗳️
aragon_saa
7 months, 3 weeks ago
An application is processing clickstream data using Amazon Kinesis. The clickstream data feed into
Kinesis experiences periodic spikes. The PutRecords API call occasionally fails and the logs show
that the failed call returns the response shown below:
Which
techniques will help mitigate this exception? (Choose two.)
- A. Implement retries with exponential backoff.
- B. Use a PutRecord API instead of PutRecords.
- C. Reduce the frequency and/or size of the requests.
- D. Use Amazon SNS instead of Kinesis.
- E. Reduce the number of KCL consumers.
Correct Answer:
AC
🗳️
eboehm2
4 months, 3 weeks agoBaba_Eni
5 months agoezredame
5 months, 1 week agoeboehm2
4 months, 3 weeks agoMajong
5 months, 1 week agoUntamables
7 months, 2 weeks agoaragon_saa
7 months, 3 weeks ago
A company has an application that uses Amazon Cognito user pools as an identity provider. The
company must secure access to user records. The company has set up multi-factor authentication
(MFA). The company also wants to send a login activity notification by email every time a user logs
in.
What is the MOST operationally efficient solution that meets this requirement?
- A. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon API Gateway API to invoke the function. Call the API from the client side when login confirmation is received.
- B. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon Cognito post authentication Lambda trigger for the function.
- C. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Create an Amazon CloudWatch Logs log subscription filter to invoke the function based on the login status.
- D. Configure Amazon Cognito to stream all logs to Amazon Kinesis Data Firehose. Create an AWS Lambda function to process the streamed logs and to send the email notification based on the login status of each user.
Correct Answer:
B
🗳️
A developer has an application that stores data in an Amazon S3 bucket. The application uses an HTTP
API to store and retrieve objects. When the PutObject API operation adds objects to the S3 bucket
the developer must encrypt these objects at rest by using server-side encryption with Amazon S3
managed keys (SSE-S3).
Which solution will meet this requirement?
- A. Create an AWS Key Management Service (AWS KMS) key. Assign the KMS key to the S3 bucket.
- B. Set the x-amz-server-side-encryption header when invoking the PutObject API operation.
- C. Provide the encryption key in the HTTP header of every request.
- D. Apply TLS to encrypt the traffic to the S3 bucket.
Correct Answer:
B
🗳️
tttamtttam
3 months, 3 weeks agoCisconAWSGURU
4 months, 2 weeks agoBibay
5 months, 3 weeks agojipark
3 months ago
A developer needs to perform geographic load testing of an API. The developer must deploy resources
to multiple AWS Regions to support the load testing of the API.
How can the developer meet these
requirements without additional application code?
- A. Create and deploy an AWS Lambda function in each desired Region. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.
- B. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.
- C. Create an AWS Systems Manager document that defines the resources. Use the document to create the resources in the desired Regions.
- D. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI deploy command to create a stack from the template in each Region.
Correct Answer:
B
🗳️
rlnd2000
2 months, 3 weeks agoBibay
5 months, 3 weeks agoUntamables
7 months, 2 weeks agosvrnvtr
7 months, 2 weeks ago
A developer is creating an application that includes an Amazon API Gateway REST API in the us-east-2
Region. The developer wants to use Amazon CloudFront and a custom domain name for the API. The
developer has acquired an SSL/TLS certificate for the domain from a third-party provider.
How
should the developer configure the custom domain for the application?
- A. Import the SSL/TLS certificate into AWS Certificate Manager (ACM) in the same Region as the API. Create a DNS A record for the custom domain.
- B. Import the SSL/TLS certificate into CloudFront. Create a DNS CNAME record for the custom domain.
- C. Import the SSL/TLS certificate into AWS Certificate Manager (ACM) in the same Region as the API. Create a DNS CNAME record for the custom domain.
- D. Import the SSL/TLS certificate into AWS Certificate Manager (ACM) in the us-east-1 Region. Create a DNS CNAME record for the custom domain.
Correct Answer:
B
🗳️
fossil123
2 months, 1 week agoancomedian
3 months, 3 weeks agoacordovam
3 months, 3 weeks agoPupina
4 months agorlnd2000
4 months, 3 weeks agopeterpain
5 months, 2 weeks agoBibay
5 months, 3 weeks agoKhyatiChhajed
6 months agohanJR
6 months, 2 weeks agoMarch2023
7 months, 2 weeks ago
A developer is creating a template that uses AWS CloudFormation to deploy an application. The
application is serverless and uses Amazon API Gateway, Amazon DynamoDB, and AWS Lambda.
Which AWS
service or tool should the developer use to define serverless resources in YAML?
- A. CloudFormation serverless intrinsic functions
- B. AWS Elastic Beanstalk
- C. AWS Serverless Application Model (AWS SAM)
- D. AWS Cloud Development Kit (AWS CDK)
Correct Answer:
C
🗳️
A developer wants to insert a record into an Amazon DynamoDB table as soon as a new file is added to
an Amazon S3 bucket.
Which set of steps would be necessary to achieve this?
- A. Create an event with Amazon EventBridge that will monitor the S3 bucket and then insert the records into DynamoDB.
- B. Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.
- C. Create an AWS Lambda function that will poll the S3 bucket and then insert the records into DynamoDB.
- D. Create a cron job that will run at a scheduled time and insert the records into DynamoDB.
Correct Answer:
B
🗳️
A development team maintains a web application by using a single AWS CloudFormation template. The
template defines web servers and an Amazon RDS database. The team uses the Cloud Formation template
to deploy the Cloud Formation stack to different environments.
During a recent application
deployment, a developer caused the primary development database to be dropped and recreated. The
result of this incident was a loss of data. The team needs to avoid accidental database deletion in
the future.
Which solutions will meet these requirements? (Choose two.)
- A. Add a CloudFormation Deletion Policy attribute with the Retain value to the database resource.
- B. Update the CloudFormation stack policy to prevent updates to the database.
- C. Modify the database to use a Multi-AZ deployment.
- D. Create a CloudFormation stack set for the web application and database deployments.
- E. Add a Cloud Formation DeletionPolicy attribute with the Retain value to the stack.
Correct Answer:
AD
🗳️
magicjims
1 month, 4 weeks agoihebchorfi
6 months, 1 week agoihebchorfi
6 months, 1 week agoUntamables
7 months, 2 weeks ago
A company has an Amazon S3 bucket that contains sensitive data. The data must be encrypted in
transit and at rest. The company encrypts the data in the S3 bucket by using an AWS Key Management
Service (AWS KMS) key. A developer needs to grant several other AWS accounts the permission to use
the S3 GetObject operation to retrieve the data from the S3 bucket.
How can the developer enforce
that all requests to retrieve the data provide encryption in transit?
- A. Define a resource-based policy on the S3 bucket to deny access when a request meets the condition “aws:SecureTransport”: “false”.
- B. Define a resource-based policy on the S3 bucket to allow access when a request meets the condition “aws:SecureTransport”: “false”.
- C. Define a role-based policy on the other accounts' roles to deny access when a request meets the condition of “aws:SecureTransport”: “false”.
- D. Define a resource-based policy on the KMS key to deny access when a request meets the condition of “aws:SecureTransport”: “false”.
Correct Answer:
A
🗳️
winzzhhzzhh
2 months ago
An application that is hosted on an Amazon EC2 instance needs access to files that are stored in an
Amazon S3 bucket. The application lists the objects that are stored in the S3 bucket and displays a
table to the user. During testing, a developer discovers that the application does not show any
objects in the list.
What is the MOST secure way to resolve this issue?
- A. Update the IAM instance profile that is attached to the EC2 instance to include the S3:* permission for the S3 bucket.
- B. Update the IAM instance profile that is attached to the EC2 instance to include the S3:ListBucket permission for the S3 bucket.
- C. Update the developer's user permissions to include the S3:ListBucket permission for the S3 bucket.
- D. Update the S3 bucket policy by including the S3:ListBucket permission and by setting the Principal element to specify the account number of the EC2 instance.
Correct Answer:
B
🗳️
yeacuz
5 months, 3 weeks agoJeremy11
3 months, 1 week agoashish_roy
2 months, 3 weeks agojipark
3 months agonmc12
1 month, 1 week agoyashika2005
5 months, 1 week agoyashika2005
5 months, 1 week ago
A company is planning to securely manage one-time fixed license keys in AWS. The company's
development team needs to access the license keys in automaton scripts that run in Amazon EC2
instances and in AWS CloudFormation stacks.
Which solution will meet these requirements MOST
cost-effectively?
- A. Amazon S3 with encrypted files prefixed with “config”
- B. AWS Secrets Manager secrets with a tag that is named SecretString
- C. AWS Systems Manager Parameter Store SecureString parameters
- D. CloudFormation NoEcho parameters
Correct Answer:
C
🗳️
s50600822
5 months ago
A company has deployed infrastructure on AWS. A development team wants to create an AWS Lambda
function that will retrieve data from an Amazon Aurora database. The Amazon Aurora database is in a
private subnet in company's VPC. The VPC is named VPC1. The data is relational in nature. The Lambda
function needs to access the data securely.
Which solution will meet these requirements?
- A. Create the Lambda function. Configure VPC1 access for the function. Attach a security group named SG1 to both the Lambda function and the database. Configure the security group inbound and outbound rules to allow TCP traffic on Port 3306.
- B. Create and launch a Lambda function in a new public subnet that is in a new VPC named VPC2. Create a peering connection between VPC1 and VPC2.
- C. Create the Lambda function. Configure VPC1 access for the function. Assign a security group named SG1 to the Lambda function. Assign a second security group named SG2 to the database. Add an inbound rule to SG1 to allow TCP traffic from Port 3306.
- D. Export the data from the Aurora database to Amazon S3. Create and launch a Lambda function in VPC1. Configure the Lambda function query the data from Amazon S3.
Correct Answer:
B
🗳️
hcsaba1982
2 weeks, 4 days agosofiatian
1 month, 2 weeks agohsinchang
1 month, 4 weeks agolove777
2 months, 1 week agoninomfr64
2 months, 2 weeks agoAWSdeveloper08
3 months, 2 weeks agoancomedian
3 months, 3 weeks agoawsazedevsh
4 months, 1 week agoawsazedevsh
4 months agoawsazedevsh
4 months, 1 week agoumer1998
4 months, 2 weeks agoumer1998
4 months, 2 weeks agorlnd2000
4 months, 3 weeks agokavi00203
4 months, 3 weeks ago
A developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda
function to process requests from clients. During testing, the developer notices that the API
Gateway times out even though the Lambda function finishes under the set time limit.
Which of the
following API Gateway metrics in Amazon CloudWatch can help the developer troubleshoot the issue?
(Choose two.)
- A. CacheHitCount
- B. IntegrationLatency
- C. CacheMissCount
- D. Latency
- E. Count
Correct Answer:
BD
🗳️
A development team wants to build a continuous integration/continuous delivery (CI/CD) pipeline. The
team is using AWS CodePipeline to automate the code build and deployment. The team wants to store
the program code to prepare for the CI/CD pipeline.
Which AWS service should the team use to
store the program code?
- A. AWS CodeDeploy
- B. AWS CodeArtifact
- C. AWS CodeCommit
- D. Amazon CodeGuru
Correct Answer:
C
🗳️
A developer is designing an AWS Lambda function that creates temporary files that are less than 10
MB during invocation. The temporary files will be accessed and modified multiple times during
invocation. The developer has no need to save or retrieve these files in the future.
Where should
the temporary files be stored?
- A. the /tmp directory
- B. Amazon Elastic File System (Amazon EFS)
- C. Amazon Elastic Block Store (Amazon EBS)
- D. Amazon S3
Correct Answer:
A
🗳️
A developer is designing a serverless application with two AWS Lambda functions to process photos.
One Lambda function stores objects in an Amazon S3 bucket and stores the associated metadata in an
Amazon DynamoDB table. The other Lambda function fetches the objects from the S3 bucket by using the
metadata from the DynamoDB table. Both Lambda functions use the same Python library to perform
complex computations and are approaching the quota for the maximum size of zipped deployment
packages.
What should the developer do to reduce the size of the Lambda deployment packages with
the LEAST operational overhead?
- A. Package each Python library in its own .zip file archive. Deploy each Lambda function with its own copy of the library.
- B. Create a Lambda layer with the required Python library. Use the Lambda layer in both Lambda functions.
- C. Combine the two Lambda functions into one Lambda function. Deploy the Lambda function as a single .zip file archive.
- D. Download the Python library to an S3 bucket. Program the Lambda functions to reference the object URLs.
Correct Answer:
B
🗳️
Mtho96
4 months agoBaba_Eni
5 months ago
A developer is writing an AWS Lambda function. The developer wants to log key events that occur
while the Lambda function runs. The developer wants to include a unique identifier to associate the
events with a specific function invocation. The developer adds the following code to the Lambda
function:
Which
solution will meet this requirement?
- A. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to standard output.
- B. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to a file.
- C. Obtain the request identifier from the AWS request ID field in the event object. Configure the application to write logs to standard output.
- D. Obtain the request identifier from the AWS request ID field in the context object. Configure the application to write logs to a file.
Correct Answer:
D
🗳️
Pupina
3 months, 4 weeks agoPupina
3 months, 4 weeks agorlnd2000
4 months, 2 weeks agoPrem28
5 months, 3 weeks agoNagendhar
5 months, 4 weeks agoRpod
6 months, 2 weeks agoWatascript
7 months, 2 weeks ago
A developer is working on a serverless application that needs to process any changes to an Amazon
DynamoDB table with an AWS Lambda function.
How should the developer configure the Lambda
function to detect changes to the DynamoDB table?
- A. Create an Amazon Kinesis data stream, and attach it to the DynamoDB table. Create a trigger to connect the data stream to the Lambda function.
- B. Create an Amazon EventBridge rule to invoke the Lambda function on a regular schedule. Conned to the DynamoDB table from the Lambda function to detect changes.
- C. Enable DynamoDB Streams on the table. Create a trigger to connect the DynamoDB stream to the Lambda function.
- D. Create an Amazon Kinesis Data Firehose delivery stream, and attach it to the DynamoDB table. Configure the delivery stream destination as the Lambda function.
Correct Answer:
C
🗳️
Baba_Eni
5 months ago
An application uses an Amazon EC2 Auto Scaling group. A developer notices that EC2 instances are
taking a long time to become available during scale-out events. The UserData script is taking a long
time to run.
The developer must implement a solution to decrease the time that elapses before an
EC2 instance becomes available. The solution must make the most recent version of the application
available at all times and must apply all available security updates. The solution also must
minimize the number of images that are created. The images must be validated.
Which combination
of steps should the developer take to meet these requirements? (Choose two.)
- A. Use EC2 Image Builder to create an Amazon Machine Image (AMI). Install all the patches and agents that are needed to manage and run the application. Update the Auto Scaling group launch configuration to use the AMI.
- B. Use EC2 Image Builder to create an Amazon Machine Image (AMI). Install the latest version of the application and all the patches and agents that are needed to manage and run the application. Update the Auto Scaling group launch configuration to use the AMI.
- C. Set up AWS CodeDeploy to deploy the most recent version of the application at runtime.
- D. Set up AWS CodePipeline to deploy the most recent version of the application at runtime.
- E. Remove any commands that perform operating system patching from the UserData script.
Correct Answer:
AB
🗳️
minh12312312
1 week, 5 days agor3mo
3 months, 2 weeks agoJonalb
1 week, 4 days agoRameez1
3 weeks, 3 days agoCerakoted
3 weeks, 5 days agoDie_fa_ed
1 month, 1 week agoappuNBablu
1 month, 2 weeks agoKashan6109
2 months agolove777
2 months, 1 week agoninomfr64
2 months, 2 weeks agojipark
3 months ago[Removed]
3 months, 3 weeks agoacordovam
3 months, 3 weeks agotttamtttam
3 months, 3 weeks agoPupina
3 months, 4 weeks agostlim83
4 months ago
A developer is creating an AWS Lambda function that needs credentials to connect to an Amazon RDS
for MySQL database. An Amazon S3 bucket currently stores the credentials. The developer needs to
improve the existing solution by implementing credential rotation and secure storage. The developer
also needs to provide integration with the Lambda function.
Which solution should the developer
use to store and retrieve the credentials with the LEAST management overhead?
- A. Store the credentials in AWS Systems Manager Parameter Store. Select the database that the parameter will access. Use the default AWS Key Management Service (AWS KMS) key to encrypt the parameter. Enable automatic rotation for the parameter. Use the parameter from Parameter Store on the Lambda function to connect to the database.
- B. Encrypt the credentials with the default AWS Key Management Service (AWS KMS) key. Store the credentials as environment variables for the Lambda function. Create a second Lambda function to generate new credentials and to rotate the credentials by updating the environment variables of the first Lambda function. Invoke the second Lambda function by using an Amazon EventBridge rule that runs on a schedule. Update the database to use the new credentials. On the first Lambda function, retrieve the credentials from the environment variables. Decrypt the credentials by using AWS KMS, Connect to the database.
- C. Store the credentials in AWS Secrets Manager. Set the secret type to Credentials for Amazon RDS database. Select the database that the secret will access. Use the default AWS Key Management Service (AWS KMS) key to encrypt the secret. Enable automatic rotation for the secret. Use the secret from Secrets Manager on the Lambda function to connect to the database.
- D. Encrypt the credentials by using AWS Key Management Service (AWS KMS). Store the credentials in an Amazon DynamoDB table. Create a second Lambda function to rotate the credentials. Invoke the second Lambda function by using an Amazon EventBridge rule that runs on a schedule. Update the DynamoDB table. Update the database to use the generated credentials. Retrieve the credentials from DynamoDB with the first Lambda function. Connect to the database.
Correct Answer:
C
🗳️
Mtho96
4 months ago
A developer has written the following IAM policy to provide access to an Amazon S3 bucket:
Which
access does the policy allow regarding the s3:GetObject and s3:PutObject actions?
- A. Access on all buckets except the “DOC-EXAMPLE-BUCKET” bucket
- B. Access on all buckets that start with “DOC-EXAMPLE-BUCKET” except the “DOC-EXAMPLE-BUCKET/secrets” bucket
- C. Access on all objects in the “DOC-EXAMPLE-BUCKET” bucket along with access to all S3 actions for objects in the “DOC-EXAMPLE-BUCKET” bucket that start with “secrets”
- D. Access on all objects in the “DOC-EXAMPLE-BUCKET” bucket except on objects that start with “secrets”
Correct Answer:
D
🗳️
A developer is creating a mobile app that calls a backend service by using an Amazon API Gateway
REST API. For integration testing during the development phase, the developer wants to simulate
different backend responses without invoking the backend service.
Which solution will meet these
requirements with the LEAST operational overhead?
- A. Create an AWS Lambda function. Use API Gateway proxy integration to return constant HTTP responses.
- B. Create an Amazon EC2 instance that serves the backend REST API by using an AWS CloudFormation template.
- C. Customize the API Gateway stage to select a response type based on the request.
- D. Use a request mapping template to select the mock integration response.
Correct Answer:
B
🗳️
ninomfr64
2 months, 2 weeks ago
A developer has a legacy application that is hosted on-premises. Other applications hosted on AWS
depend on the on-premises application for proper functioning. In case of any application errors, the
developer wants to be able to use Amazon CloudWatch to monitor and troubleshoot all applications
from one place.
How can the developer accomplish this?
- A. Install an AWS SDK on the on-premises server to automatically send logs to CloudWatch.
- B. Download the CloudWatch agent to the on-premises server. Configure the agent to use IAM user credentials with permissions for CloudWatch.
- C. Upload log files from the on-premises server to Amazon S3 and have CloudWatch read the files.
- D. Upload log files from the on-premises server to an Amazon EC2 instance and have the instance forward the logs to CloudWatch.
Correct Answer:
B
🗳️
An Amazon Kinesis Data Firehose delivery stream is receiving customer data that contains personally
identifiable information. A developer needs to remove pattern-based customer identifiers from the
data and store the modified data in an Amazon S3 bucket.
What should the developer do to meet
these requirements?
- A. Implement Kinesis Data Firehose data transformation as an AWS Lambda function. Configure the function to remove the customer identifiers. Set an Amazon S3 bucket as the destination of the delivery stream.
- B. Launch an Amazon EC2 instance. Set the EC2 instance as the destination of the delivery stream. Run an application on the EC2 instance to remove the customer identifiers. Store the transformed data in an Amazon S3 bucket.
- C. Create an Amazon OpenSearch Service instance. Set the OpenSearch Service instance as the destination of the delivery stream. Use search and replace to remove the customer identifiers. Export the data to an Amazon S3 bucket.
- D. Create an AWS Step Functions workflow to remove the customer identifiers. As the last step in the workflow, store the transformed data in an Amazon S3 bucket. Set the workflow as the destination of the delivery stream.
Correct Answer:
A
🗳️
A developer is using an AWS Lambda function to generate avatars for profile pictures that are
uploaded to an Amazon S3 bucket. The Lambda function is automatically invoked for profile pictures
that are saved under the /original/ S3 prefix. The developer notices that some pictures cause the
Lambda function to time out. The developer wants to implement a fallback mechanism by using another
Lambda function that resizes the profile picture.
Which solution will meet these requirements
with the LEAST development effort?
- A. Set the image resize Lambda function as a destination of the avatar generator Lambda function for the events that fail processing.
- B. Create an Amazon Simple Queue Service (Amazon SQS) queue. Set the SQS queue as a destination with an on failure condition for the avatar generator Lambda function. Configure the image resize Lambda function to poll from the SQS queue.
- C. Create an AWS Step Functions state machine that invokes the avatar generator Lambda function and uses the image resize Lambda function as a fallback. Create an Amazon EventBridge rule that matches events from the S3 bucket to invoke the state machine.
- D. Create an Amazon Simple Notification Service (Amazon SNS) topic. Set the SNS topic as a destination with an on failure condition for the avatar generator Lambda function. Subscribe the image resize Lambda function to the SNS topic.
Correct Answer:
C
🗳️
jingle4944
1 month, 1 week agoappuNBablu
1 month, 2 weeks agoninomfr64
2 months, 2 weeks agojayvarma
2 months, 4 weeks agobackfringe
3 months, 1 week agoAWSdeveloper08
3 months, 2 weeks ago[Removed]
3 months, 3 weeks agojipark
3 months, 1 week agoumer1998
4 months, 2 weeks agoScherbakovMike
5 months, 1 week agorlnd2000
5 months, 2 weeks agomarijabtw
5 months, 3 weeks agoNagendhar
5 months, 3 weeks agojunrun3
5 months, 3 weeks ago
A developer needs to migrate an online retail application to AWS to handle an anticipated increase
in traffic. The application currently runs on two servers: one server for the web application and
another server for the database. The web server renders webpages and manages session state in
memory. The database server hosts a MySQL database that contains order details. When traffic to the
application is heavy, the memory usage for the web server approaches 100% and the application slows
down considerably.
The developer has found that most of the memory increase and performance
decrease is related to the load of managing additional user sessions. For the web server migration,
the developer will use Amazon EC2 instances with an Auto Scaling group behind an Application Load
Balancer.
Which additional set of changes should the developer make to the application to improve
the application's performance?
- A. Use an EC2 instance to host the MySQL database. Store the session data and the application data in the MySQL database.
- B. Use Amazon ElastiCache for Memcached to store and manage the session data. Use an Amazon RDS for MySQL DB instance to store the application data.
- C. Use Amazon ElastiCache for Memcached to store and manage the session data and the application data.
- D. Use the EC2 instance store to manage the session data. Use an Amazon RDS for MySQL DB instance to store the application data.
Correct Answer:
A
🗳️
nkelesidis
3 months, 3 weeks agoninomfr64
2 months, 2 weeks agoUntamables
7 months, 2 weeks ago
An application uses Lambda functions to extract metadata from files uploaded to an S3 bucket; the
metadata is stored in Amazon DynamoDB. The application starts behaving unexpectedly, and the
developer wants to examine the logs of the Lambda function code for errors.
Based on this system
configuration, where would the developer find the logs?
- A. Amazon S3
- B. AWS CloudTrail
- C. Amazon CloudWatch
- D. Amazon DynamoDB
Correct Answer:
C
🗳️
A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream. The
company recently observed slow processing of the records. A developer notices that the iterator age
metric for the function is increasing and that the Lambda run duration is constantly above
normal.
Which actions should the developer take to increase the processing speed? (Choose two.)
- A. Increase the number of shards of the Kinesis data stream.
- B. Decrease the timeout of the Lambda function.
- C. Increase the memory that is allocated to the Lambda function.
- D. Decrease the number of shards of the Kinesis data stream.
- E. Increase the timeout of the Lambda function.
Correct Answer:
AC
🗳️
A company needs to harden its container images before the images are in a running state. The
company's application uses Amazon Elastic Container Registry (Amazon ECR) as an image registry.
Amazon Elastic Kubernetes Service (Amazon EKS) for compute, and an AWS CodePipeline pipeline that
orchestrates a continuous integration and continuous delivery (CI/CD) workflow.
Dynamic
application security testing occurs in the final stage of the pipeline after a new image is deployed
to a development namespace in the EKS cluster. A developer needs to place an analysis stage before
this deployment to analyze the container image earlier in the CI/CD pipeline.
Which solution will
meet these requirements with the MOST operational efficiency?
- A. Build the container image and run the docker scan command locally. Mitigate any findings before pushing changes to the source code repository. Write a pre-commit hook that enforces the use of this workflow before commit.
- B. Create a new CodePipeline stage that occurs after the container image is built. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
- C. Create a new CodePipeline stage that occurs after source code has been retrieved from its repository. Run a security scanner on the latest revision of the source code. Fail the pipeline if there are findings.
- D. Add an action to the deployment stage of the pipeline so that the action occurs before the deployment to the EKS cluster. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
Correct Answer:
D
🗳️
imvb88
5 months, 2 weeks agoToby_S
5 months agoMrTee
6 months, 3 weeks ago
A developer is testing a new file storage application that uses an Amazon CloudFront distribution to
serve content from an Amazon S3 bucket. The distribution accesses the S3 bucket by using an origin
access identity (OAI). The S3 bucket's permissions explicitly deny access to all other users.
The
application prompts users to authenticate on a login page and then uses signed cookies to allow
users to access their personal storage directories. The developer has configured the distribution to
use its default cache behavior with restricted viewer access and has set the origin to point to the
S3 bucket. However, when the developer tries to navigate to the login page, the developer receives a
403 Forbidden error.
The developer needs to implement a solution to allow unauthenticated access
to the login page. The solution also must keep all private content secure.
Which solution will
meet these requirements?
- A. Add a second cache behavior to the distribution with the same origin as the default cache behavior. Set the path pattern for the second cache behavior to the path of the login page, and make viewer access unrestricted. Keep the default cache behavior's settings unchanged.
- B. Add a second cache behavior to the distribution with the same origin as the default cache behavior. Set the path pattern for the second cache behavior to *, and make viewer access restricted. Change the default cache behavior's path pattern to the path of the login page, and make viewer access unrestricted.
- C. Add a second origin as a failover origin to the default cache behavior. Point the failover origin to the S3 bucket. Set the path pattern for the primary origin to *, and make viewer access restricted. Set the path pattern for the failover origin to the path of the login page, and make viewer access unrestricted.
- D. Add a bucket policy to the S3 bucket to allow read access. Set the resource on the policy to the Amazon Resource Name (ARN) of the login page object in the S3 bucket. Add a CloudFront function to the default cache behavior to redirect unauthorized requests to the login page's S3 URL.
Correct Answer:
A
🗳️
Harddiver
4 months, 4 weeks agoMrTee
6 months, 2 weeks ago
A developer is using AWS Amplify Hosting to build and deploy an application. The developer is
receiving an increased number of bug reports from users. The developer wants to add end-to-end
testing to the application to eliminate as many bugs as possible before the bugs reach
production.
Which solution should the developer implement to meet these requirements?
- A. Run the amplify add test command in the Amplify CLI.
- B. Create unit tests in the application. Deploy the unit tests by using the amplify push command in the Amplify CLI.
- C. Add a test phase to the amplify.yml build settings for the application.
- D. Add a test phase to the aws-exports.js file for the application.
Correct Answer:
C
🗳️
jipark
3 months, 1 week agorlnd2000
5 months, 2 weeks ago
An ecommerce company is using an AWS Lambda function behind Amazon API Gateway as its application
tier. To process orders during checkout, the application calls a POST API from the frontend. The
POST API invokes the Lambda function asynchronously. In rare situations, the application has not
processed orders. The Lambda application logs show no errors or failures.
What should a developer
do to solve this problem?
- A. Inspect the frontend logs for API failures. Call the POST API manually by using the requests from the log file.
- B. Create and inspect the Lambda dead-letter queue. Troubleshoot the failed functions. Reprocess the events.
- C. Inspect the Lambda logs in Amazon CloudWatch for possible errors. Fix the errors.
- D. Make sure that caching is disabled for the POST API in API Gateway.
Correct Answer:
B
🗳️
rlnd2000
6 months agokavi00203
4 months, 3 weeks agoTeeTheMan
3 months, 1 week agomr_swal
3 weeks, 4 days agodaicoso
3 weeks, 1 day agonmc12
1 month agonorris81
1 month, 2 weeks agomisa27
1 month, 3 weeks agoninomfr64
2 months, 2 weeks agobackfringe
3 months, 1 week agoredfivedog
3 months, 1 week agogomurali
4 months, 1 week agocsG13
5 months agorn5357
1 month, 3 weeks agoNagendhar
5 months, 4 weeks agoclarksu
7 months, 2 weeks ago
A company is building a web application on AWS. When a customer sends a request, the application
will generate reports and then make the reports available to the customer within one hour. Reports
should be accessible to the customer for 8 hours. Some reports are larger than 1 MB. Each report is
unique to the customer. The application should delete all reports that are older than 2
days.
Which solution will meet these requirements with the LEAST operational overhead?
- A. Generate the reports and then store the reports as Amazon DynamoDB items that have a specified TTL. Generate a URL that retrieves the reports from DynamoDB. Provide the URL to customers through the web application.
- B. Generate the reports and then store the reports in an Amazon S3 bucket that uses server-side encryption. Attach the reports to an Amazon Simple Notification Service (Amazon SNS) message. Subscribe the customer to email notifications from Amazon SNS.
- C. Generate the reports and then store the reports in an Amazon S3 bucket that uses server-side encryption. Generate a presigned URL that contains an expiration date Provide the URL to customers through the web application. Add S3 Lifecycle configuration rules to the S3 bucket to delete old reports.
- D. Generate the reports and then store the reports in an Amazon RDS database with a date stamp. Generate an URL that retrieves the reports from the RDS database. Provide the URL to customers through the web application. Schedule an hourly AWS Lambda function to delete database records that have expired date stamps.
Correct Answer:
B
🗳️
imvb88
5 months, 2 weeks agoUntamables
7 months, 2 weeks ago
A company has deployed an application on AWS Elastic Beanstalk. The company has configured the Auto
Scaling group that is associated with the Elastic Beanstalk environment to have five Amazon EC2
instances. If the capacity is fewer than four EC2 instances during the deployment, application
performance degrades. The company is using the all-at-once deployment policy.
What is the MOST
cost-effective way to solve the deployment issue?
- A. Change the Auto Scaling group to six desired instances.
- B. Change the deployment policy to traffic splitting. Specify an evaluation time of 1 hour.
- C. Change the deployment policy to rolling with additional batch. Specify a batch size of 1.
- D. Change the deployment policy to rolling. Specify a batch size of 2.
Correct Answer:
C
🗳️
Prem28
5 months agonmc12
1 month agogagol14
4 months, 2 weeks agojipark
3 months, 1 week agoUntamables
7 months, 2 weeks ago
A developer is incorporating AWS X-Ray into an application that handles personal identifiable
information (PII). The application is hosted on Amazon EC2 instances. The application trace messages
include encrypted PII and go to Amazon CloudWatch. The developer needs to ensure that no PII goes
outside of the EC2 instances.
Which solution will meet these requirements?
- A. Manually instrument the X-Ray SDK in the application code.
- B. Use the X-Ray auto-instrumentation agent.
- C. Use Amazon Macie to detect and hide PII. Call the X-Ray API from AWS Lambda.
- D. Use AWS Distro for Open Telemetry.
Correct Answer:
B
🗳️
Umman
3 months, 1 week agojasper_pigeon
3 months, 2 weeks agokris_jec
3 months, 2 weeks agotttamtttam
3 months, 3 weeks agodan80
6 months, 2 weeks agoUntamables
7 months, 2 weeks agomacross
7 months, 2 weeks agoStarLoard
7 months, 2 weeks ago
A developer is migrating some features from a legacy monolithic application to use AWS Lambda
functions instead. The application currently stores data in an Amazon Aurora DB cluster that runs in
private subnets in a VPC. The AWS account has one VPC deployed. The Lambda functions and the DB
cluster are deployed in the same AWS Region in the same AWS account.
The developer needs to
ensure that the Lambda functions can securely access the DB cluster without crossing the public
internet.
Which solution will meet these requirements?
- A. Configure the DB cluster's public access setting to Yes.
- B. Configure an Amazon RDS database proxy for he Lambda functions.
- C. Configure a NAT gateway and a security group for the Lambda functions.
- D. Configure the VPC, subnets, and a security group for the Lambda functions.
Correct Answer:
D
🗳️
eberhe900
4 months agoUntamables
7 months, 2 weeks agoDun6
7 months, 2 weeks ago
A developer is building a new application on AWS. The application uses an AWS Lambda function that
retrieves information from an Amazon DynamoDB table. The developer hard coded the DynamoDB table
name into the Lambda function code. The table name might change over time. The developer does not
want to modify the Lambda code if the table name changes.
Which solution will meet these
requirements MOST efficiently?
- A. Create a Lambda environment variable to store the table name. Use the standard method for the programming language to retrieve the variable.
- B. Store the table name in a file. Store the file in the /tmp folder. Use the SDK for the programming language to retrieve the table name.
- C. Create a file to store the table name. Zip the file and upload the file to the Lambda layer. Use the SDK for the programming language to retrieve the table name.
- D. Create a global variable that is outside the handler in the Lambda function to store the table name.
Correct Answer:
C -
🗳️
gpt_test
7 months, 1 week agoUntamables
7 months, 2 weeks ago
A company has a critical application on AWS. The application exposes an HTTP API by using Amazon API
Gateway. The API is integrated with an AWS Lambda function. The application stores data in an Amazon
RDS for MySQL DB instance with 2 virtual CPUs (vCPUs) and 64 GB of RAM.
Customers have
reported that some of the API calls return HTTP 500 Internal Server Error responses. Amazon
CloudWatch Logs shows errors for “too many connections.” The errors occur during peak usage times
that are unpredictable.
The company needs to make the application resilient. The database
cannot be down outside of scheduled maintenance hours.
Which solution will meet these
requirements?
- A. Decrease the number of vCPUs for the DB instance. Increase the max_connections setting.
- B. Use Amazon RDS Proxy to create a proxy that connects to the DB instance. Update the Lambda function to connect to the proxy.
- C. Add a CloudWatch alarm that changes the DB instance class when the number of connections increases to more than 1,000.
- D. Add an Amazon EventBridge rule that increases the max_connections setting of the DB instance when CPU utilization is above 75%.
Correct Answer:
B
🗳️
love777
2 months, 1 week agotttamtttam
3 months, 3 weeks agoNaj_64
3 months, 4 weeks agocsG13
5 months agoawsdummie
5 months, 1 week ago
A company has installed smart meters in all its customer locations. The smart meters measure power
usage at 1-minute intervals and send the usage readings to a remote endpoint for collection. The
company needs to create an endpoint that will receive the smart meter readings and store the
readings in a database. The company wants to store the location ID and timestamp
information.
The company wants to give its customers low-latency access to their current
usage and historical usage on demand. The company expects demand to increase significantly. The
solution must not impact performance or include downtime while scaling.
Which solution will
meet these requirements MOST cost-effectively?
- A. Store the smart meter readings in an Amazon RDS database. Create an index on the location ID and timestamp columns. Use the columns to filter on the customers' data.
- B. Store the smart meter readings in an Amazon DynamoDB table. Create a composite key by using the location ID and timestamp columns. Use the columns to filter on the customers' data.
- C. Store the smart meter readings in Amazon ElastiCache for Redis. Create a SortedSet key by using the location ID and timestamp columns. Use the columns to filter on the customers' data.
- D. Store the smart meter readings in Amazon S3. Partition the data by using the location ID and timestamp columns. Use Amazon Athena to filter on the customers' data.
Correct Answer:
B
🗳️
zoro_chi
1 month agoNaj_64
3 months, 1 week agojasper_pigeon
3 months, 2 weeks agoHuiHsin
5 months agoMrTee
6 months, 2 weeks ago
A company is building a serverless application that uses AWS Lambda functions. The company needs to
create a set of test events to test Lambda functions in a development environment. The test events
will be created once and then will be used by all the developers in an IAM developer group. The test
events must be editable by any of the IAM users in the IAM developer group.
Which solution
will meet these requirements?
- A. Create and store the test events in Amazon S3 as JSON objects. Allow S3 bucket access to all IAM users.
- B. Create the test events. Configure the event sharing settings to make the test events shareable.
- C. Create and store the test events in Amazon DynamoDB. Allow access to DynamoDB by using IAM roles.
- D. Create the test events. Configure the event sharing settings to make the test events private.
Correct Answer:
B
🗳️
DUBERS
3 months, 1 week agoCloud_Cloud
6 months, 2 weeks agoMrTee
6 months, 2 weeks agoFyssy
6 months, 3 weeks agoNaj_64
3 months, 4 weeks ago
A developer is configuring an application's deployment environment in AWS CodePipeline. The
application code is stored in a GitHub repository. The developer wants to ensure that the repository
package's unit tests run in the new deployment environment. The developer has already set the
pipeline's source provider to GitHub and has specified the repository and branch to use in the
deployment.
Which combination of steps should the developer take next to meet these
requirements with the LEAST overhead? (Choose two.)
- A. Create an AWS CodeCommit project. Add the repository package's build and test commands to the project's buildspec.
- B. Create an AWS CodeBuild project. Add the repository package's build and test commands to the project's buildspec.
- C. Create an AWS CodeDeploy project. Add the repository package's build and test commands to the project's buildspec.
- D. Add an action to the source stage. Specify the newly created project as the action provider. Specify the build artifact as the action's input artifact.
- E. Add a new stage to the pipeline after the source stage. Add an action to the new stage. Specify the newly created project as the action provider. Specify the source artifact as the action's input artifact.
Correct Answer:
BD
🗳️
An engineer created an A/B test of a new feature on an Amazon CloudWatch Evidently project. The
engineer configured two variations of the feature (Variation A and Variation B) for the test. The
engineer wants to work exclusively with Variation A. The engineer needs to make updates so that
Variation A is the only variation that appears when the engineer hits the application's
endpoint.
Which solution will meet this requirement?
- A. Add an override to the feature. Set the identifier of the override to the engineer's user ID. Set the variation to Variation A.
- B. Add an override to the feature. Set the identifier of the override to Variation A. Set the variation to 100%.
- C. Add an experiment to the project. Set the identifier of the experiment to Variation B. Set the variation to 0%.
- D. Add an experiment to the project. Set the identifier of the experiment to the AWS account's account ISet the variation to Variation A.
Correct Answer:
B
🗳️
A developer is working on an existing application that uses Amazon DynamoDB as its data store. The
DynamoDB table has the following attributes: partNumber (partition key), vendor (sort key),
description, productFamily, and productType. When the developer analyzes the usage patterns, the
developer notices that there are application modules that frequently look for a list of products
based on the productFamily and productType attributes.
The developer wants to make changes to
the application to improve performance of the query operations.
Which solution will meet
these requirements?
- A. Create a global secondary index (GSI) with productFamily as the partition key and productType as the sort key.
- B. Create a local secondary index (LSI) with productFamily as the partition key and productType as the sort key.
- C. Recreate the table. Add partNumber as the partition key and vendor as the sort key. During table creation, add a local secondary index (LSI) with productFamily as the partition key and productType as the sort key.
- D. Update the queries to use Scan operations with productFamily as the partition key and productType as the sort key.
Correct Answer:
A
🗳️
A developer creates a VPC named VPC-A that has public and private subnets. The developer also
creates an Amazon RDS database inside the private subnet of VPC-A. To perform some queries, the
developer creates an AWS Lambda function in the default VPC. The Lambda function has code to access
the RDS database. When the Lambda function runs, an error message indicates that the function cannot
connect to the RDS database.
How can the developer solve this problem?
- A. Modify the RDS security group. Add a rule to allow traffic from all the ports from the VPC CIDR block.
- B. Redeploy the Lambda function in the same subnet as the RDS instance. Ensure that the RDS security group allows traffic from the Lambda function.
- C. Create a security group for the Lambda function. Add a new rule in the RDS security group to allow traffic from the new Lambda security group.
- D. Create an IAM role. Attach a policy that allows access to the RDS database. Attach the role to the Lambda function.
Correct Answer:
C
🗳️
love777
2 months, 1 week agor3mo
3 months, 2 weeks agoNaj_64
3 months, 4 weeks agohexie
4 months, 2 weeks agoPrem28
5 months agoPrem28
5 months, 1 week agoPrem28
5 months, 1 week agoJamshif01
5 months, 3 weeks ago
A company runs an application on AWS. The company deployed the application on Amazon EC2 instances.
The application stores data on Amazon Aurora.
The application recently logged multiple
application-specific custom DECRYP_ERROR errors to Amazon CloudWatch logs. The company did not
detect the issue until the automated tests that run every 30 minutes failed. A developer must
implement a solution that will monitor for the custom errors and alert a development team in real
time when these errors occur in the production environment.
Which solution will meet these
requirements with the LEAST operational overhead?
- A. Configure the application to create a custom metric and to push the metric to CloudWatch. Create an AWS CloudTrail alarm. Configure the CloudTrail alarm to use an Amazon Simple Notification Service (Amazon SNS) topic to send notifications.
- B. Create an AWS Lambda function to run every 5 minutes to scan the CloudWatch logs for the keyword DECRYP_ERROR. Configure the Lambda function to use Amazon Simple Notification Service (Amazon SNS) to send a notification.
- C. Use Amazon CloudWatch Logs to create a metric filter that has a filter pattern for DECRYP_ERROR. Create a CloudWatch alarm on this metric for a threshold >=1. Configure the alarm to send Amazon Simple Notification Service (Amazon SNS) notifications.
- D. Install the CloudWatch unified agent on the EC2 instance. Configure the application to generate a metric for the keyword DECRYP_ERROR errors. Configure the agent to send Amazon Simple Notification Service (Amazon SNS) notifications.
Correct Answer:
C
🗳️
Fyssy
6 months, 3 weeks ago
A developer created an AWS Lambda function that accesses resources in a VPC. The Lambda function
polls an Amazon Simple Queue Service (Amazon SQS) queue for new messages through a VPC endpoint.
Then the function calculates a rolling average of the numeric values that are contained in the
messages. After initial tests of the Lambda function, the developer found that the value of the
rolling average that the function returned was not accurate.
How can the developer ensure
that the function calculates an accurate rolling average?
- A. Set the function's reserved concurrency to 1. Calculate the rolling average in the function. Store the calculated rolling average in Amazon ElastiCache.
- B. Modify the function to store the values in Amazon ElastiCache. When the function initializes, use the previous values from the cache to calculate the rolling average.
- C. Set the function's provisioned concurrency to 1. Calculate the rolling average in the function. Store the calculated rolling average in Amazon ElastiCache.
- D. Modify the function to store the values in the function's layers. When the function initializes, use the previously stored values to calculate the rolling average.
Correct Answer:
C
🗳️
jipark
3 months, 1 week agodexdinh91
2 weeks, 6 days agonnecode
1 month, 1 week agonnecode
1 month, 1 week agosofiatian
1 month, 3 weeks agolove777
2 months, 1 week agoredfivedog
3 months, 1 week agoMrPie
4 months agoawsazedevsh
4 months agoqwan
4 months agoFyssy
6 months, 3 weeks ago
A developer is writing unit tests for a new application that will be deployed on AWS. The developer
wants to validate all pull requests with unit tests and merge the code with the main branch only
when all tests pass.
The developer stores the code in AWS CodeCommit and sets up AWS
CodeBuild to run the unit tests. The developer creates an AWS Lambda function to start the CodeBuild
task. The developer needs to identify the CodeCommit events in an Amazon EventBridge event that can
invoke the Lambda function when a pull request is created or updated.
Which CodeCommit event
will meet these requirements?
-
A.
-
B.
-
C.
-
D.
Correct Answer:
C
🗳️
Dushank
1 month, 4 weeks agocsG13
5 months agoMajong
5 months, 2 weeks agozodraz
6 months agozodraz
6 months agoFyssy
6 months, 3 weeks ago
A developer deployed an application to an Amazon EC2 instance. The application needs to know the
public IPv4 address of the instance.
How can the application find this information?
- A. Query the instance metadata from http://169.254.169.254/latest/meta-data/.
- B. Query the instance user data from http://169.254.169.254/latest/user-data/.
- C. Query the Amazon Machine Image (AMI) information from http://169.254.169.254/latest/meta-data/ami/.
- D. Check the hosts file of the operating system.
Correct Answer:
A
🗳️
Naj_64
3 months, 4 weeks agozodraz
6 months agozodraz
6 months ago
An application under development is required to store hundreds of video files. The data must be
encrypted within the application prior to storage, with a unique key for each video file.
How
should the developer code the application?
- A. Use the KMS Encrypt API to encrypt the data. Store the encrypted data key and data.
- B. Use a cryptography library to generate an encryption key for the application. Use the encryption key to encrypt the data. Store the encrypted data.
- C. Use the KMS GenerateDataKey API to get a data key. Encrypt the data with the data key. Store the encrypted data key and data.
- D. Upload the data to an S3 bucket using server side-encryption with an AWS KMS key.
Correct Answer:
C
🗳️
hsinchang
1 month, 3 weeks ago
A company is planning to deploy an application on AWS behind an Elastic Load Balancer. The
application uses an HTTP/HTTPS listener and must access the client IP addresses.
Which
load-balancing solution meets these requirements?
- A. Use an Application Load Balancer and the X-Forwarded-For headers.
- B. Use a Network Load Balancer (NLB). Enable proxy protocol support on the NLB and the target application.
- C. Use an Application Load Balancer. Register the targets by the instance ID.
- D. Use a Network Load Balancer and the X-Forwarded-For headers.
Correct Answer:
A
🗳️
A developer wants to debug an application by searching and filtering log data. The application logs
are stored in Amazon CloudWatch Logs. The developer creates a new metric filter to count exceptions
in the application logs. However, no results are returned from the logs.
What is the reason
that no filtered results are being returned?
- A. A setup of the Amazon CloudWatch interface VPC endpoint is required for filtering the CloudWatch Logs in the VPC.
- B. CloudWatch Logs only publishes metric data for events that happen after the filter is created.
- C. The log group for CloudWatch Logs should be first streamed to Amazon OpenSearch Service before metric filtering returns the results.
- D. Metric data points for logs groups can be filtered only after they are exported to an Amazon S3 bucket.
Correct Answer:
B
🗳️
A company is planning to use AWS CodeDeploy to deploy an application to Amazon Elastic Container
Service (Amazon ECS). During the deployment of a new version of the application, the company
initially must expose only 10% of live traffic to the new version of the deployed application. Then,
after 15 minutes elapse, the company must route all the remaining live traffic to the new version of
the deployed application.
Which CodeDeploy predefined configuration will meet these
requirements?
- A. CodeDeployDefault.ECSCanary10Percent15Minutes
- B. CodeDeployDefault.LambdaCanary10Percent5Minutes
- C. CodeDeployDefault.LambdaCanary10Percentl15Minutes
- D. CodeDeployDefault.ECSLinear10PercentEvery1Minutes
Correct Answer:
A
🗳️
A company hosts a batch processing application on AWS Elastic Beanstalk with instances that run the
most recent version of Amazon Linux. The application sorts and processes large datasets.
In
recent weeks, the application's performance has decreased significantly during a peak period for
traffic. A developer suspects that the application issues are related to the memory usage. The
developer checks the Elastic Beanstalk console and notices that memory usage is not being
tracked.
How should the developer gather more information about the application performance
issues?
- A. Configure the Amazon CloudWatch agent to push logs to Amazon CloudWatch Logs by using port 443.
- B. Configure the Elastic Beanstalk .ebextensions directory to track the memory usage of the instances.
- C. Configure the Amazon CloudWatch agent to track the memory usage of the instances.
- D. Configure an Amazon CloudWatch dashboard to track the memory usage of the instances.
Correct Answer:
B
🗳️
Dushank
1 month, 4 weeks agolove777
2 months, 1 week agofossil123
2 months, 1 week agoNaj_64
3 months, 1 week agojasper_pigeon
3 months, 2 weeks agoqwan
4 months agorlnd2000
4 months, 3 weeks ago
A developer is building a highly secure healthcare application using serverless components. This
application requires writing temporary data to /tmp storage on an AWS Lambda function.
How
should the developer encrypt this data?
- A. Enable Amazon EBS volume encryption with an AWS KMS key in the Lambda function configuration so that all storage attached to the Lambda function is encrypted.
- B. Set up the Lambda function with a role and key policy to access an AWS KMS key. Use the key to generate a data key used to encrypt all data prior to writing to /tmp storage.
- C. Use OpenSSL to generate a symmetric encryption key on Lambda startup. Use this key to encrypt the data prior to writing to /tmp.
- D. Use an on-premises hardware security module (HSM) to generate keys, where the Lambda function requests a data key from the HSM and uses that to encrypt data on all requests to the function.
Correct Answer:
B
🗳️
MrTee
6 months, 2 weeks ago
A developer has created an AWS Lambda function to provide notification through Amazon Simple
Notification Service (Amazon SNS) whenever a file is uploaded to Amazon S3 that is larger than 50
MB. The developer has deployed and tested the Lambda function by using the CLI. However, when the
event notification is added to the S3 bucket and a 3,000 MB file is uploaded, the Lambda function
does not launch.
Which of the following is a possible reason for the Lambda function's
inability to launch?
- A. The S3 event notification does not activate for files that are larger than 1,000 MB.
- B. The resource-based policy for the Lambda function does not have the required permissions to be invoked by Amazon S3.
- C. Lambda functions cannot be invoked directly from an S3 event.
- D. The S3 bucket needs to be made public.
Correct Answer:
B
🗳️
A developer is creating a Ruby application and needs to automate the deployment, scaling, and
management of an environment without requiring knowledge of the underlying
infrastructure.
Which service would best accomplish this task?
- A. AWS CodeDeploy
- B. AWS CloudFormation
- C. AWS OpsWorks
- D. AWS Elastic Beanstalk
Correct Answer:
D
🗳️
A company has a web application that is deployed on AWS. The application uses an Amazon API Gateway
API and an AWS Lambda function as its backend.
The application recently demonstrated
unexpected behavior. A developer examines the Lambda function code, finds an error, and modifies the
code to resolve the problem. Before deploying the change to production, the developer needs to run
tests to validate that the application operates properly.
The application has only a
production environment available. The developer must create a new development environment to test
the code changes. The developer must also prevent other developers from overwriting these changes
during the test cycle.
Which combination of steps will meet these requirements with the LEAST
development effort? (Choose two.)
- A. Create a new resource in the current stage. Create a new method with Lambda proxy integration. Select the Lambda function. Add the hotfix alias. Redeploy the current stage. Test the backend.
- B. Update the Lambda function in the API Gateway API integration request to use the hotfix alias. Deploy the API Gateway API to a new stage named hotfix. Test the backend.
- C. Modify the Lambda function by fixing the code. Test the Lambda function. Create the alias hotfix. Point the alias to the $LATEST version.
- D. Modify the Lambda function by fixing the code. Test the Lambda function. When the Lambda function is working as expected, publish the Lambda function as a new version. Create the alias hotfix. Point the alias to the new version.
- E. Create a new API Gateway API for the development environment. Add a resource and method with Lambda integration. Choose the Lambda function and the hotfix alias. Deploy to a new stage. Test the backend.
Correct Answer:
BD
🗳️
Ponyi
14 hours, 18 minutes agor3mo
3 months, 1 week agotttamtttam
3 months, 3 weeks agocsG13
5 months agozodraz
6 months ago
A developer is implementing an AWS Cloud Development Kit (AWS CDK) serverless application. The
developer will provision several AWS Lambda functions and Amazon API Gateway APIs during AWS
CloudFormation stack creation. The developer's workstation has the AWS Serverless Application Model
(AWS SAM) and the AWS CDK installed locally.
How can the developer test a specific Lambda
function locally?
- A. Run the sam package and sam deploy commands. Create a Lambda test event from the AWS Management Console. Test the Lambda function.
- B. Run the cdk synth and cdk deploy commands. Create a Lambda test event from the AWS Management Console. Test the Lambda function.
- C. Run the cdk synth and sam local invoke commands with the function construct identifier and the path to the synthesized CloudFormation template.
- D. Run the cdk synth and sam local start-lambda commands with the function construct identifier and the path to the synthesized CloudFormation template.
Correct Answer:
D
🗳️
fossil123
2 months, 1 week agoJamalDaBoss
3 months agozodraz
6 months ago
A company's new mobile app uses Amazon API Gateway. As the development team completes a new release
of its APIs, a developer must safely and transparently roll out the API change.
What is the
SIMPLEST solution for the developer to use for rolling out the new API version to a limited number
of users through API Gateway?
- A. Create a new API in API Gateway. Direct a portion of the traffic to the new API using an Amazon Route 53 weighted routing policy.
- B. Validate the new API version and promote it to production during the window of lowest expected utilization.
- C. Implement an Amazon CloudWatch alarm to trigger a rollback if the observed HTTP 500 status code rate exceeds a predetermined threshold.
- D. Use the canary release deployment option in API Gateway. Direct a percentage of the API traffic using the canarySettings setting.
Correct Answer:
D
🗳️
Dushank
1 month, 4 weeks agozodraz
6 months ago
A company caches session information for a web application in an Amazon DynamoDB table. The company
wants an automated way to delete old items from the table.
What is the simplest way to do
this?
- A. Write a script that deletes old records; schedule the script as a cron job on an Amazon EC2 instance.
- B. Add an attribute with the expiration time; enable the Time To Live feature based on that attribute.
- C. Each day, create a new table to hold session data; delete the previous day's table.
- D. Add an attribute with the expiration time; name the attribute ItemExpiration.
Correct Answer:
B
🗳️
Dushank
1 month, 4 weeks agocatcatpunch
5 months, 1 week agozodraz
6 months ago
A company is using an Amazon API Gateway REST API endpoint as a webhook to publish events from an
on-premises source control management (SCM) system to Amazon EventBridge. The company has configured
an EventBridge rule to listen for the events and to control application deployment in a central AWS
account. The company needs to receive the same events across multiple receiver AWS
accounts.
How can a developer meet these requirements without changing the configuration of
the SCM system?
- A. Deploy the API Gateway REST API to all the required AWS accounts. Use the same custom domain name for all the gateway endpoints so that a single SCM webhook can be used for all events from all accounts.
- B. Deploy the API Gateway REST API to all the receiver AWS accounts. Create as many SCM webhooks as the number of AWS accounts.
- C. Grant permission to the central AWS account for EventBridge to access the receiver AWS accounts. Add an EventBridge event bus on the receiver AWS accounts as the targets to the existing EventBridge rule.
- D. Convert the API Gateway type from REST API to HTTP API.
Correct Answer:
C
🗳️
A company moved some of its secure files to a private Amazon S3 bucket that has no public access.
The company wants to develop a serverless application that gives its employees the ability to log in
and securely share the files with other users.
Which AWS feature should the company use to
share and access the files securely?
- A. Amazon Cognito user pool
- B. S3 presigned URLs
- C. S3 bucket policy
- D. Amazon Cognito identity pool
Correct Answer:
A
🗳️
Rameez1
2 weeks, 6 days agoEMPERBACH
1 month, 2 weeks agoIamtany
1 month, 3 weeks agobreadops
2 months, 1 week agohmdev
2 months, 2 weeks agoNaj_64
2 months, 2 weeks agoandrevus
2 months, 3 weeks agoSbon24
3 months agobindu545
3 months agor3mo
3 months, 1 week agobobo777
3 months, 2 weeks agojasper_pigeon
3 months, 2 weeks ago
A company needs to develop a proof of concept for a web service application. The application will
show the weather forecast for one of the company's office locations. The application will provide a
REST endpoint that clients can call. Where possible, the application should use caching features
provided by AWS to limit the number of requests to the backend service. The application backend will
receive a small amount of traffic only during testing.
Which approach should the developer
take to provide the REST endpoint MOST cost-effectively?
- A. Create a container image. Deploy the container image by using Amazon Elastic Kubernetes Service (Amazon EKS). Expose the functionality by using Amazon API Gateway.
- B. Create an AWS Lambda function by using the AWS Serverless Application Model (AWS SAM). Expose the Lambda functionality by using Amazon API Gateway.
- C. Create a container image. Deploy the container image by using Amazon Elastic Container Service (Amazon ECS). Expose the functionality by using Amazon API Gateway.
- D. Create a microservices application. Deploy the application to AWS Elastic Beanstalk. Expose the AWS Lambda functionality by using an Application Load Balancer.
Correct Answer:
B
🗳️
An e-commerce web application that shares session state on-premises is being migrated to AWS. The
application must be fault tolerant, natively highly scalable, and any service interruption should
not affect the user experience.
What is the best option to store the session state?
- A. Store the session state in Amazon ElastiCache.
- B. Store the session state in Amazon CloudFront.
- C. Store the session state in Amazon S3.
- D. Enable session stickiness using elastic load balancers.
Correct Answer:
A
🗳️
Phongsanth
4 months, 2 weeks agoloctong
5 months, 3 weeks agozodraz
6 months ago
A developer is building an application that uses Amazon DynamoDB. The developer wants to retrieve
multiple specific items from the database with a single API call.
Which DynamoDB API call
will meet these requirements with the MINIMUM impact on the database?
- A. BatchGetItem
- B. GetItem
- C. Scan
- D. Query
Correct Answer:
D
🗳️
jipark
3 months agoBaba_Eni
4 months, 3 weeks agoimvb88
5 months, 2 weeks ago
A developer has written an application that runs on Amazon EC2 instances. The developer is adding
functionality for the application to write objects to an Amazon S3 bucket.
Which policy must
the developer modify to allow the instances to write these objects?
- A. The IAM policy that is attached to the EC2 instance profile role
- B. The session policy that is applied to the EC2 instance role session
- C. The AWS Key Management Service (AWS KMS) key policy that is attached to the EC2 instance profile role
- D. The Amazon VPC endpoint policy
Correct Answer:
A
🗳️
A developer is leveraging a Border Gateway Protocol (BGP)-based AWS VPN connection to connect from
on-premises to Amazon EC2 instances in the developer's account. The developer is able to access an
EC2 instance in subnet A, but is unable to access an EC2 instance in subnet B in the same
VPC.
Which logs can the developer use to verify whether the traffic is reaching subnet B?
- A. VPN logs
- B. BGP logs
- C. VPC Flow Logs
- D. AWS CloudTrail logs
Correct Answer:
C
🗳️
Dushank
1 month, 4 weeks agoPrem28
5 months, 3 weeks agozodraz
6 months ago
A developer is creating a service that uses an Amazon S3 bucket for image uploads. The service will
use an AWS Lambda function to create a thumbnail of each image. Each time an image is uploaded, the
service needs to send an email notification and create the thumbnail. The developer needs to
configure the image processing and email notifications setup.
Which solution will meet these
requirements?
- A. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 event notifications with a destination of the SNS topic. Subscribe the Lambda function to the SNS topic. Create an email notification subscription to the SNS topic.
- B. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 event notifications with a destination of the SNS topic. Subscribe the Lambda function to the SNS topic. Create an Amazon Simple Queue Service (Amazon SQS) queue. Subscribe the SQS queue to the SNS topic. Create an email notification subscription to the SQS queue.
- C. Create an Amazon Simple Queue Service (Amazon SQS) queue. Configure S3 event notifications with a destination of the SQS queue. Subscribe the Lambda function to the SQS queue. Create an email notification subscription to the SQS queue.
- D. Create an Amazon Simple Queue Service (Amazon SQS) queue. Send S3 event notifications to Amazon EventBridge. Create an EventBridge rule that runs the Lambda function when images are uploaded to the S3 bucket. Create an EventBridge rule that sends notifications to the SQS queue. Create an email notification subscription to the SQS queue.
Correct Answer:
A
🗳️
A developer has designed an application to store incoming data as JSON files in Amazon S3 objects.
Custom business logic in an AWS Lambda function then transforms the objects, and the Lambda function
loads the data into an Amazon DynamoDB table. Recently, the workload has experienced sudden and
significant changes in traffic. The flow of data to the DynamoDB table is becoming
throttled.
The developer needs to implement a solution to eliminate the throttling and load
the data into the DynamoDB table more consistently.
Which solution will meet these
requirements?
- A. Refactor the Lambda function into two functions. Configure one function to transform the data and one function to load the data into the DynamoDB table. Create an Amazon Simple Queue Service (Amazon SQS) queue in between the functions to hold the items as messages and to invoke the second function.
- B. Turn on auto scaling for the DynamoDB table. Use Amazon CloudWatch to monitor the table's read and write capacity metrics and to track consumed capacity.
- C. Create an alias for the Lambda function. Configure provisioned concurrency for the application to use.
- D. Refactor the Lambda function into two functions. Configure one function to store the data in the DynamoDB table. Configure the second function to process the data and update the items after the data is stored in DynamoDB. Create a DynamoDB stream to invoke the second function after the data is stored.
Correct Answer:
B
🗳️
robotgeek
5 months, 1 week agojingle4944
3 weeks, 6 days agoBalliache520505
1 month, 1 week agoDushank
1 month, 4 weeks agojipark
3 months agobaboopan18
3 months, 2 weeks agoqwan
4 months agotttamtttam
3 months, 3 weeks agoeberhe900
4 months agoPhongsanth
4 months agogagol14
4 months, 2 weeks agomgonblan
5 months, 1 week agoloctong
5 months, 3 weeks ago
A developer is creating an AWS Lambda function in VPC mode. An Amazon S3 event will invoke the
Lambda function when an object is uploaded into an S3 bucket. The Lambda function will process the
object and produce some analytic results that will be recorded into a file. Each processed object
will also generate a log entry that will be recorded into a file.
Other Lambda functions, AWS
services, and on-premises resources must have access to the result files and log file. Each log
entry must also be appended to the same shared log file. The developer needs a solution that can
share files and append results into an existing file.
Which solution should the developer use
to meet these requirements?
- A. Create an Amazon Elastic File System (Amazon EFS) file system. Mount the EFS file system in Lambda. Store the result files and log file in the mount point. Append the log entries to the log file.
- B. Create an Amazon Elastic Block Store (Amazon EBS) Multi-Attach enabled volume. Attach the EBS volume to all Lambda functions. Update the Lambda function code to download the log file, append the log entries, and upload the modified log file to Amazon EBS.
- C. Create a reference to the /tmp local directory. Store the result files and log file by using the directory reference. Append the log entry to the log file.
- D. Create a reference to the /opt storage directory. Store the result files and log file by using the directory reference. Append the log entry to the log file.
Correct Answer:
A
🗳️
Dushank
1 month, 4 weeks agomgonblan
5 months, 1 week ago
A company has an AWS Lambda function that processes incoming requests from an Amazon API Gateway
API. The API calls the Lambda function by using a Lambda alias. A developer updated the Lambda
function code to handle more details related to the incoming requests. The developer wants to deploy
the new Lambda function for more testing by other developers with no impact to customers that use
the API.
Which solution will meet these requirements with the LEAST operational overhead?
- A. Create a new version of the Lambda function. Create a new stage on API Gateway with integration to the new Lambda version. Use the new API Gateway stage to test the Lambda function.
- B. Update the existing Lambda alias used by API Gateway to a weighted alias. Add the new Lambda version as an additional Lambda function with a weight of 10%. Use the existing API Gateway stage for testing.
- C. Create a new version of the Lambda function. Create and deploy a second Lambda function to filter incoming requests from API Gateway. If the filtering Lambda function detects a test request, the filtering Lambda function will invoke the new Lambda version of the code. For other requests, the filtering Lambda function will invoke the old Lambda version. Update the API Gateway API to use the filtering Lambda function.
- D. Create a new version of the Lambda function. Create a new API Gateway API for testing purposes. Update the integration of the new API with the new Lambda version. Use the new API for testing.
Correct Answer:
C
🗳️
NaghamAbdellatif
1 month, 2 weeks agoCerakoted
1 month agojayvarma
3 months agojipark
3 months agoMrPie
4 months agoFunkyFresco
4 months agorlnd2000
5 months, 3 weeks ago
A company uses AWS Lambda functions and an Amazon S3 trigger to process images into an S3 bucket. A
development team set up multiple environments in a single AWS account.
After a recent
production deployment, the development team observed that the development S3 buckets invoked the
production environment Lambda functions. These invocations caused unwanted execution of development
S3 files by using production Lambda functions. The development team must prevent these invocations.
The team must follow security best practices.
Which solution will meet these requirements?
- A. Update the Lambda execution role for the production Lambda function to add a policy that allows the execution role to read from only the production environment S3 bucket.
- B. Move the development and production environments into separate AWS accounts. Add a resource policy to each Lambda function to allow only S3 buckets that are within the same account to invoke the function.
- C. Add a resource policy to the production Lambda function to allow only the production environment S3 bucket to invoke the function.
- D. Move the development and production environments into separate AWS accounts. Update the Lambda execution role for each function to add a policy that allows the execution role to read from the S3 bucket that is within the same account.
Correct Answer:
C
🗳️
MrPie
4 months agoNagasoracle
2 weeks, 6 days agoNagasoracle
2 weeks, 6 days agoMillie024
1 month, 2 weeks agofossil123
2 months, 1 week agostilloneway
2 months, 2 weeks agolove777
2 months, 2 weeks ago
A developer is creating an application. New users of the application must be able to create an
account and register by using their own social media accounts.
Which AWS service or resource
should the developer use to meet these requirements?
- A. IAM role
- B. Amazon Cognito identity pools
- C. Amazon Cognito user pools
- D. AWS Directory Service
Correct Answer:
C
🗳️
Dushank
1 month, 4 weeks agoDushank
1 month, 4 weeks agohanJR
6 months, 1 week agoMrTee
6 months, 2 weeks agorlnd2000
5 months, 3 weeks agoawsdummie
6 months ago
A social media application uses the AWS SDK for JavaScript on the frontend to get user credentials
from AWS Security Token Service (AWS STS). The application stores its assets in an Amazon S3 bucket.
The application serves its content by using an Amazon CloudFront distribution with the origin set to
the S3 bucket.
The credentials for the role that the application assumes to make the SDK
calls are stored in plaintext in a JSON file within the application code. The developer needs to
implement a solution that will allow the application to get user credentials without having any
credentials hardcoded in the application code.
Which solution will meet these requirements?
- A. Add a Lambda@Edge function to the distribution. Invoke the function on viewer request. Add permissions to the function's execution role to allow the function to access AWS STS. Move all SDK calls from the frontend into the function.
- B. Add a CloudFront function to the distribution. Invoke the function on viewer request. Add permissions to the function's execution role to allow the function to access AWS STS. Move all SDK calls from the frontend into the function.
- C. Add a Lambda@Edge function to the distribution. Invoke the function on viewer request. Move the credentials from the JSON file into the function. Move all SDK calls from the frontend into the function.
- D. Add a CloudFront function to the distribution. Invoke the function on viewer request. Move the credentials from the JSON file into the function. Move all SDK calls from the frontend into the function.
Correct Answer:
A
🗳️
MG1407
2 months, 3 weeks agozodraz
6 months agovic614
6 months, 1 week agoMrTee
6 months, 2 weeks agoCloud_Cloud
6 months, 2 weeks agoeboehm
4 months, 3 weeks ago
An ecommerce website uses an AWS Lambda function and an Amazon RDS for MySQL database for an order
fulfillment service. The service needs to return order confirmation immediately.
During a
marketing campaign that caused an increase in the number of orders, the website's operations team
noticed errors for “too many connections” from Amazon RDS. However, the RDS DB cluster metrics are
healthy. CPU and memory capacity are still available.
What should a developer do to resolve
the errors?
- A. Initialize the database connection outside the handler function. Increase the max_user_connections value on the parameter group of the DB cluster. Restart the DB cluster.
- B. Initialize the database connection outside the handler function. Use RDS Proxy instead of connecting directly to the DB cluster.
- C. Use Amazon Simple Queue Service (Amazon SQS) FIFO queues to queue the orders. Ingest the orders into the database. Set the Lambda function's concurrency to a value that equals the number of available database connections.
- D. Use Amazon Simple Queue Service (Amazon SQS) FIFO queues to queue the orders. Ingest the orders into the database. Set the Lambda function's concurrency to a value that is less than the number of available database connections.
Correct Answer:
A
🗳️
eberhe900
4 months agoloctong
5 months, 2 weeks agohanJR
6 months, 1 week ago
A company stores its data in data tables in a series of Amazon S3 buckets. The company received an
alert that customer credit card information might have been exposed in a data table on one of the
company's public applications. A developer needs to identify all potential exposures within the
application environment.
Which solution will meet these requirements?
- A. Use Amazon Athena to run a job on the S3 buckets that contain the affected data. Filter the findings by using the SensitiveData:S3Object/Personal finding type.
- B. Use Amazon Macie to run a job on the S3 buckets that contain the affected data. Filter the findings by using the SensitiveData:S3Object/Financial finding type.
- C. Use Amazon Macie to run a job on the S3 buckets that contain the affected data. Filter the findings by using the SensitiveData:S3Object/Personal finding type.
- D. Use Amazon Athena to run a job on the S3 buckets that contain the affected data. Filter the findings by using the SensitiveData:S3Object/Financial finding type.
Correct Answer:
D
🗳️
HuiHsin
5 months agoPrem28
5 months, 3 weeks ago
A software company is launching a multimedia application. The application will allow guest users to
access sample content before the users decide if they want to create an account to gain full access.
The company wants to implement an authentication process that can identify users who have already
created an account. The company also needs to keep track of the number of guest users who eventually
create an account.
Which combination of steps will meet these requirements? (Choose two.)
- A. Create an Amazon Cognito user pool. Configure the user pool to allow unauthenticated users. Exchange user tokens for temporary credentials that allow authenticated users to assume a role.
- B. Create an Amazon Cognito identity pool. Configure the identity pool to allow unauthenticated users. Exchange unique identity for temporary credentials that allow all users to assume a role.
- C. Create an Amazon CloudFront distribution. Configure the distribution to allow unauthenticated users. Exchange user tokens for temporary credentials that allow all users to assume a role.
- D. Create a role for authenticated users that allows access to all content. Create a role for unauthenticated users that allows access to only the sample content.
- E. Allow all users to access the sample content by default. Create a role for authenticated users that allows access to the other content.
Correct Answer:
BE
🗳️
A company is updating an application to move the backend of the application from Amazon EC2
instances to a serverless model. The application uses an Amazon RDS for MySQL DB instance and runs
in a single VPC on AWS. The application and the DB instance are deployed in a private subnet in the
VPC.
The company needs to connect AWS Lambda functions to the DB instance.
Which
solution will meet these requirements?
- A. Create Lambda functions inside the VPC with the AWSLambdaBasicExecutionRole policy attached to the Lambda execution role. Modify the RDS security group to allow inbound access from the Lambda security group.
- B. Create Lambda functions inside the VPC with the AWSLambdaVPCAccessExecutionRole policy attached to the Lambda execution role. Modify the RDS security group to allow inbound access from the Lambda security group.
- C. Create Lambda functions with the AWSLambdaBasicExecutionRole policy attached to the Lambda execution role. Create an interface VPC endpoint for the Lambda functions. Configure the interface endpoint policy to allow the lambda:InvokeFunclion action for each Lambda function's Amazon Resource Name (ARN).
- D. Create Lambda functions with the AWSLambdaVPCAccessExecutionRole policy attached to the Lambda execution role. Create an interface VPC endpoint for the Lambda functions. Configure the interface endpoint policy to allow the lambda:InvokeFunction action for each Lambda function's Amazon Resource Name (ARN).
Correct Answer:
B
🗳️
love777
2 months, 1 week agoBaba_Eni
4 months, 3 weeks agoPrem28
5 months agojipark
3 months ago
A company has a web application that runs on Amazon EC2 instances with a custom Amazon Machine Image
(AMI). The company uses AWS CloudFormation to provision the application. The application runs in the
us-east-1 Region, and the company needs to deploy the application to the us-west-1 Region.
An
attempt to create the AWS CloudFormation stack in us-west-1 fails. An error message states that the
AMI ID does not exist. A developer must resolve this error with a solution that uses the least
amount of operational overhead.
Which solution meets these requirements?
- A. Change the AWS CloudFormation templates for us-east-1 and us-west-1 to use an AWS AMI. Relaunch the stack for both Regions.
- B. Copy the custom AMI from us-east-1 to us-west-1. Update the AWS CloudFormation template for us-west-1 to refer to AMI ID for the copied AMI. Relaunch the stack.
- C. Build the custom AMI in us-west-1. Create a new AWS CloudFormation template to launch the stack in us-west-1 with the new AMI ID.
- D. Manually deploy the application outside AWS CloudFormation in us-west-1.
Correct Answer:
B
🗳️
A developer is updating several AWS Lambda functions and notices that all the Lambda functions share
the same custom libraries. The developer wants to centralize all the libraries, update the libraries
in a convenient way, and keep the libraries versioned.
Which solution will meet these
requirements with the LEAST development effort?
- A. Create an AWS CodeArtifact repository that contains all the custom libraries.
- B. Create a custom container image for the Lambda functions to save all the custom libraries.
- C. Create a Lambda layer that contains all the custom libraries.
- D. Create an Amazon Elastic File System (Amazon EFS) file system to store all the custom libraries.
Correct Answer:
D
🗳️
loctong
5 months, 3 weeks agoloctong
5 months, 3 weeks agoRyan1002
6 months ago
A developer wants to use AWS Elastic Beanstalk to test a new version of an application in a test
environment.
Which deployment method offers the FASTEST deployment?
- A. Immutable
- B. Rolling
- C. Rolling with additional batch
- D. All at once
Correct Answer:
D
🗳️
A company is providing read access to objects in an Amazon S3 bucket for different customers. The
company uses IAM permissions to restrict access to the S3 bucket. The customers can access only
their own files.
Due to a regulation requirement, the company needs to enforce encryption in
transit for interactions with Amazon S3.
Which solution will meet these requirements?
- A. Add a bucket policy to the S3 bucket to deny S3 actions when the aws:SecureTransport condition is equal to false.
- B. Add a bucket policy to the S3 bucket to deny S3 actions when the s3:x-amz-acl condition is equal to public-read.
- C. Add an IAM policy to the IAM users to enforce the usage of the AWS SDK.
- D. Add an IAM policy to the IAM users that allows S3 actions when the s3:x-amz-acl condition is equal to bucket-owner-read.
Correct Answer:
D
🗳️
rlnd2000
5 months, 3 weeks ago
A company has an image storage web application that runs on AWS. The company hosts the application
on Amazon EC2 instances in an Auto Scaling group. The Auto Scaling group acts as the target group
for an Application Load Balancer (ALB) and uses an Amazon S3 bucket to store the images for
sale.
The company wants to develop a feature to test system requests. The feature will direct
requests to a separate target group that hosts a new beta version of the application.
Which
solution will meet this requirement with the LEAST effort?
- A. Create a new Auto Scaling group and target group for the beta version of the application. Update the ALB routing rule with a condition that looks for a cookie named version that has a value of beta. Update the test system code to use this cookie to test the beta version of the application.
- B. Create a new ALB, Auto Scaling group, and target group for the beta version of the application. Configure an alternate Amazon Route 53 record for the new ALB endpoint. Use the alternate Route 53 endpoint in the test system requests to test the beta version of the application.
- C. Create a new ALB, Auto Scaling group, and target group for the beta version of the application. Use Amazon CloudFront with Lambda@Edge to determine which specific request will go to the new ALB. Use the CloudFront endpoint to send the test system requests to test the beta version of the application.
- D. Create a new Auto Scaling group and target group for the beta version of the application. Update the ALB routing rule with a condition that looks for a cookie named version that has a value of beta. Use Amazon CloudFront with Lambda@Edge to update the test system requests to add the required cookie when the requests go to the ALB.
Correct Answer:
D
🗳️
Rameez1
3 weeks, 2 days agonnecode
1 month, 1 week agobackfringe
3 months, 1 week agoeboehm
4 months, 3 weeks agoyeacuz
5 months, 3 weeks agojunrun3
5 months, 3 weeks ago
A team is developing an application that is deployed on Amazon EC2 instances. During testing, the
team receives an error. The EC2 instances are unable to access an Amazon S3 bucket.
Which
steps should the team take to troubleshoot this issue? (Choose two.)
- A. Check whether the policy that is assigned to the IAM role that is attached to the EC2 instances grants access to Amazon S3.
- B. Check the S3 bucket policy to validate the access permissions for the S3 bucket.
- C. Check whether the policy that is assigned to the IAM user that is attached to the EC2 instances grants access to Amazon S3.
- D. Check the S3 Lifecycle policy to validate the permissions that are assigned to the S3 bucket.
- E. Check the security groups that are assigned to the EC2 instances. Make sure that a rule is not blocking the access to Amazon S3.
Correct Answer:
D E
🗳️
love777
2 months, 2 weeks agolove777
2 months, 2 weeks agoawsazedevsh
4 months agoremynick
2 months, 3 weeks agoindirasubbaraj
4 months, 3 weeks agoPrem28
5 months agovic614
6 months, 1 week ago
A developer is working on an ecommerce website. The developer wants to review server logs without
logging in to each of the application servers individually. The website runs on multiple Amazon EC2
instances, is written in Python, and needs to be highly available.
How can the developer
update the application to meet these requirements with MINIMUM changes?
- A. Rewrite the application to be cloud native and to run on AWS Lambda, where the logs can be reviewed in Amazon CloudWatch.
- B. Set up centralized logging by using Amazon OpenSearch Service, Logstash, and OpenSearch Dashboards.
- C. Scale down the application to one larger EC2 instance where only one instance is recording logs.
- D. Install the unified Amazon CloudWatch agent on the EC2 instances. Configure the agent to push the application logs to CloudWatch.
Correct Answer:
D
🗳️
A company is creating an application that processes .csv files from Amazon S3. A developer has
created an S3 bucket. The developer has also created an AWS Lambda function to process the .csv
files from the S3 bucket.
Which combination of steps will invoke the Lambda function when a
.csv file is uploaded to Amazon S3? (Choose two.)
- A. Create an Amazon EventBridge rule. Configure the rule with a pattern to match the S3 object created event.
- B. Schedule an Amazon EventBridge rule to run a new Lambda function to scan the S3 bucket.
- C. Add a trigger to the existing Lambda function. Set the trigger type to EventBridge. Select the Amazon EventBridge rule.
- D. Create a new Lambda function to scan the S3 bucket for recently added S3 objects.
- E. Add S3 Lifecycle rules to invoke the existing Lambda function.
Correct Answer:
BD
🗳️
A developer needs to build an AWS CloudFormation template that self-populates the AWS Region
variable that deploys the CloudFormation template.
What is the MOST operationally efficient
way to determine the Region in which the template is being deployed?
- A. Use the AWS::Region pseudo parameter.
- B. Require the Region as a CloudFormation parameter.
- C. Find the Region from the AWS::StackId pseudo parameter by using the Fn::Split intrinsic function.
- D. Dynamically import the Region by referencing the relevant parameter in AWS Systems Manager Parameter Store.
Correct Answer:
A
🗳️
Baba_Eni
4 months, 3 weeks agoloctong
5 months, 3 weeks ago
A company has hundreds of AWS Lambda functions that the company's QA team needs to test by using the
Lambda function URLs. A developer needs to configure the authentication of the Lambda functions to
allow access so that the QA IAM group can invoke the Lambda functions by using the public
URLs.
Which solution will meet these requirements?
- A. Create a CLI script that loops on the Lambda functions to add a Lambda function URL with the AWS_IAM auth type. Run another script to create an IAM identity-based policy that allows the lambda:InvokeFunctionUrl action to all the Lambda function Amazon Resource Names (ARNs). Attach the policy to the QA IAM group.
- B. Create a CLI script that loops on the Lambda functions to add a Lambda function URL with the NONE auth type. Run another script to create an IAM resource-based policy that allows the lambda:InvokeFunctionUrl action to all the Lambda function Amazon Resource Names (ARNs). Attach the policy to the QA IAM group.
- C. Create a CLI script that loops on the Lambda functions to add a Lambda function URL with the AWS_IAM auth type. Run another script to loop on the Lambda functions to create an IAM identity-based policy that allows the lambda:InvokeFunctionUrl action from the QA IAM group's Amazon Resource Name (ARN).
- D. Create a CLI script that loops on the Lambda functions to add a Lambda function URL with the NONE auth type. Run another script to loop on the Lambda functions to create an IAM resource-based policy that allows the lambda:InvokeFunctionUrl action from the QA IAM group's Amazon Resource Name (ARN).
Correct Answer:
A
🗳️
dezoito
3 weeks, 2 days ago
A developer maintains a critical business application that uses Amazon DynamoDB as the primary data
store. The DynamoDB table contains millions of documents and receives 30-60 requests each minute.
The developer needs to perform processing in near-real time on the documents when they are added or
updated in the DynamoDB table.
How can the developer implement this feature with the LEAST
amount of change to the existing application code?
- A. Set up a cron job on an Amazon EC2 instance. Run a script every hour to query the table for changes and process the documents.
- B. Enable a DynamoDB stream on the table. Invoke an AWS Lambda function to process the documents.
- C. Update the application to send a PutEvents request to Amazon EventBridge. Create an EventBridge rule to invoke an AWS Lambda function to process the documents.
- D. Update the application to synchronously process the documents directly after the DynamoDB write.
Correct Answer:
B
🗳️
A developer is writing an application for a company. The application will be deployed on Amazon EC2
and will use an Amazon RDS for Microsoft SQL Server database. The company's security team requires
that database credentials are rotated at least weekly.
How should the developer configure the
database credentials for this application?
- A. Create a database user. Store the user name and password in an AWS Systems Manager Parameter Store secure string parameter. Enable rotation of the AWS Key Management Service (AWS KMS) key that is used to encrypt the parameter.
- B. Enable IAM authentication for the database. Create a database user for use with IAM authentication. Enable password rotation.
- C. Create a database user. Store the user name and password in an AWS Secrets Manager secret that has daily rotation enabled.
- D. Use the EC2 user data to create a database user. Provide the user name and password in environment variables to the application.
Correct Answer:
C
🗳️
Baba_Eni
4 months, 3 weeks ago
A real-time messaging application uses Amazon API Gateway WebSocket APIs with backend HTTP service.
A developer needs to build a feature in the application to identify a client that keeps connecting
to and disconnecting from the WebSocket connection. The developer also needs the ability to remove
the client.
Which combination of changes should the developer make to the application to meet
these requirements? (Choose two.)
- A. Switch to HTTP APIs in the backend service.
- B. Switch to REST APIs in the backend service.
- C. Use the callback URL to disconnect the client from the backend service.
- D. Add code to track the client status in Amazon ElastiCache in the backend service.
- E. Implement $connect and $disconnect routes in the backend service.
Correct Answer:
CD
🗳️
love777
2 months, 2 weeks agoPhongsanth
4 months, 1 week agodelak
5 months, 2 weeks agoloctong
5 months, 3 weeks ago
A developer has written code for an application and wants to share it with other developers on the
team to receive feedback. The shared application code needs to be stored long-term with multiple
versions and batch change tracking.
Which AWS service should the developer use?
- A. AWS CodeBuild
- B. Amazon S3
- C. AWS CodeCommit
- D. AWS Cloud9
Correct Answer:
C
🗳️
A company's developer is building a static website to be deployed in Amazon S3 for a production
environment. The website integrates with an Amazon Aurora PostgreSQL database by using an AWS Lambda
function. The website that is deployed to production will use a Lambda alias that points to a
specific version of the Lambda function.
The company must rotate the database credentials
every 2 weeks. Lambda functions that the company deployed previously must be able to use the most
recent credentials.
Which solution will meet these requirements?
- A. Store the database credentials in AWS Secrets Manager. Turn on rotation. Write code in the Lambda function to retrieve the credentials from Secrets Manager.
- B. Include the database credentials as part of the Lambda function code. Update the credentials periodically and deploy the new Lambda function.
- C. Use Lambda environment variables. Update the environment variables when new credentials are available.
- D. Store the database credentials in AWS Systems Manager Parameter Store. Turn on rotation. Write code in the Lambda function to retrieve the credentials from Systems Manager Parameter Store.
Correct Answer:
A
🗳️
A developer is developing an application that uses signed requests (Signature Version 4) to call
other AWS services. The developer has created a canonical request, has created the string to sign,
and has calculated signing information.
Which methods could the developer use to complete a
signed request? (Choose two.)
- A. Add the signature to an HTTP header that is named Authorization.
- B. Add the signature to a session cookie.
- C. Add the signature to an HTTP header that is named Authentication.
- D. Add the signature to a query string parameter that is named X-Amz-Signature.
- E. Add the signature to an HTTP header that is named WWW-Authenticate.
Correct Answer:
AD
🗳️
loctong
5 months, 3 weeks agoawsdummie
6 months ago
A company must deploy all its Amazon RDS DB instances by using AWS CloudFormation templates as part
of AWS CodePipeline continuous integration and continuous delivery (CI/CD) automation. The primary
password for the DB instance must be automatically generated as part of the deployment
process.
Which solution will meet these requirements with the LEAST development effort?
- A. Create an AWS Lambda-backed CloudFormation custom resource. Write Lambda code that generates a secure string. Return the value of the secure string as a data field of the custom resource response object. Use the CloudFormation Fn::GetAtt intrinsic function to get the value of the secure string. Use the value to create the DB instance.
- B. Use the AWS CodeBuild action of CodePipeline to generate a secure string by using the following AWS CLI command: aws secretsmanager get-random-password. Pass the generated secure string as a CloudFormation parameter with the NoEcho attribute set to true. Use the parameter reference to create the DB instance.
- C. Create an AWS Lambda-backed CloudFormation custom resource. Write Lambda code that generates a secure string. Return the value of the secure string as a data field of the custom resource response object. Use the CloudFormation Fn::GetAtt intrinsic function to get a value of the secure string. Create secrets in AWS Secrets Manager. Use the secretsmanager dynamic reference to use the value stored in the secret to create the DB instance.
- D. Use the AWS::SecretsManager::Secret resource to generate a secure string. Store the secure string as a secret in AWS Secrets Manager. Use the secretsmanager dynamic reference to use the value stored in the secret to create the DB instance.
Correct Answer:
B
🗳️
dezoito
3 weeks, 2 days agolove777
2 months, 2 weeks agoFunkyFresco
5 months, 1 week agorlnd2000
5 months, 3 weeks agochumji
5 months, 4 weeks agoMrTee
6 months, 2 weeks ago
An organization is storing large files in Amazon S3, and is writing a web application to display
meta-data about the files to end-users. Based on the metadata a user selects an object to download.
The organization needs a mechanism to index the files and provide single-digit millisecond latency
retrieval for the metadata.
What AWS service should be used to accomplish this?
- A. Amazon DynamoDB
- B. Amazon EC2
- C. AWS Lambda
- D. Amazon RDS
Correct Answer:
A
🗳️
A developer is creating an AWS Serverless Application Model (AWS SAM) template. The AWS SAM template
contains the definition of multiple AWS Lambda functions, an Amazon S3 bucket, and an Amazon
CloudFront distribution. One of the Lambda functions runs on Lambda@Edge in the CloudFront
distribution. The S3 bucket is configured as an origin for the CloudFront distribution.
When
the developer deploys the AWS SAM template in the eu-west-1 Region, the creation of the stack
fails.
Which of the following could be the reason for this issue?
- A. CloudFront distributions can be created only in the us-east-1 Region.
- B. Lambda@Edge functions can be created only in the us-east-1 Region.
- C. A single AWS SAM template cannot contain multiple Lambda functions.
- D. The CloudFront distribution and the S3 bucket cannot be created in the same Region.
Correct Answer:
C
🗳️
loctong
5 months, 3 weeks ago
A developer is integrating Amazon ElastiCache in an application. The cache will store data from a
database. The cached data must populate real-time dashboards.
Which caching strategy will
meet these requirements?
- A. A read-through cache
- B. A write-behind cache
- C. A lazy-loading cache
- D. A write-through cache
Correct Answer:
D
🗳️
loctong
5 months, 3 weeks ago
A developer is creating an AWS Lambda function. The Lambda function needs an external library to
connect to a third-party solution. The external library is a collection of files with a total size
of 100 MB. The developer needs to make the external library available to the Lambda execution
environment and reduce the Lambda package space.
Which solution will meet these requirements
with the LEAST operational overhead?
- A. Create a Lambda layer to store the external library. Configure the Lambda function to use the layer.
- B. Create an Amazon S3 bucket. Upload the external library into the S3 bucket. Mount the S3 bucket folder in the Lambda function. Import the library by using the proper folder in the mount point.
- C. Load the external library to the Lambda function's /tmp directory during deployment of the Lambda package. Import the library from the /tmp directory.
- D. Create an Amazon Elastic File System (Amazon EFS) volume. Upload the external library to the EFS volume. Mount the EFS volume in the Lambda function. Import the library by using the proper folder in the mount point.
Correct Answer:
C
🗳️
dan80
6 months, 1 week ago
A company has a front-end application that runs on four Amazon EC2 instances behind an Elastic Load
Balancer (ELB) in a production environment that is provisioned by AWS Elastic Beanstalk. A developer
needs to deploy and test new application code while updating the Elastic Beanstalk platform from the
current version to a newer version of Node.js. The solution must result in zero downtime for the
application.
Which solution meets these requirements?
- A. Clone the production environment to a different platform version. Deploy the new application code, and test it. Swap the environment URLs upon verification.
- B. Deploy the new application code in an all-at-once deployment to the existing EC2 instances. Test the code. Redeploy the previous code if verification fails.
- C. Perform an immutable update to deploy the new application code to new EC2 instances. Serve traffic to the new instances after they pass health checks.
- D. Use a rolling deployment for the new application code. Apply the code to a subset of EC2 instances until the tests pass. Redeploy the previous code if the tests fail.
Correct Answer:
D
🗳️
yeacuz
5 months, 3 weeks agoawsdummie
6 months agostilloneway
2 months, 1 week agolove777
2 months, 2 weeks agoNaj_64
2 months, 2 weeks agoNaj_64
2 months, 2 weeks agoMG1407
2 months, 3 weeks agoMG1407
2 months, 3 weeks agoredfivedog
3 months, 1 week agobobo777
3 months, 2 weeks agoPhongsanth
4 months, 1 week agoNaj_64
2 months, 2 weeks agogagol14
4 months, 2 weeks agoyeacuz
5 months, 3 weeks agoloctong
5 months, 3 weeks agoMrTee
6 months, 2 weeks agoqwan
4 months ago
A developer is creating an AWS Lambda function. The Lambda function will consume messages from an
Amazon Simple Queue Service (Amazon SQS) queue. The developer wants to integrate unit testing as
part of the function's continuous integration and continuous delivery (CI/CD) process.
How
can the developer unit test the function?
- A. Create an AWS CloudFormation template that creates an SQS queue and deploys the Lambda function. Create a stack from the template during the CI/CD process. Invoke the deployed function. Verify the output.
- B. Create an SQS event for tests. Use a test that consumes messages from the SQS queue during the function's Cl/CD process.
- C. Create an SQS queue for tests. Use this SQS queue in the application's unit test. Run the unit tests during the CI/CD process.
- D. Use the aws lambda invoke command with a test event during the CIICD process.
Correct Answer:
D
🗳️
love777
2 months, 2 weeks agor3mo
3 months, 2 weeks agovicvega
4 months agoPhongsanth
4 months, 1 week agohexie
4 months, 1 week ago
A developer is working on a web application that uses Amazon DynamoDB as its data store. The
application has two DynamoDB tables: one table that is named artists and one table that is named
songs. The artists table has artistName as the partition key. The songs table has songName as the
partition key and artistName as the sort key.
The table usage patterns include the retrieval
of multiple songs and artists in a single database operation from the webpage. The developer needs a
way to retrieve this information with minimal network traffic and optimal application
performance.
Which solution will meet these requirements?
- A. Perform a BatchGetltem operation that returns items from the two tables. Use the list of songName/artistName keys for the songs table and the list of artistName key for the artists table.
- B. Create a local secondary index (LSI) on the songs table that uses artistName as the partition key. Perform a query operation for each artistName on the songs table that filters by the list of songName. Perform a query operation for each artistName on the artists table.
- C. Perform a BatchGetitem operation on the songs table that uses the songName/artistName keys. Perform a BatchGetltem operation on the artists table that uses artistName as the key.
- D. Perform a Scan operation on each table that filters by the list of songName/artistName for the songs table and the list of artistName in the artists table.
Correct Answer:
A
🗳️
caiyi
4 months agoBaba_Eni
4 months, 3 weeks ago
A company is developing an ecommerce application that uses Amazon API Gateway APIs. The application
uses AWS Lambda as a backend. The company needs to test the code in a dedicated, monitored test
environment before the company releases the code to the production environment.
Which
solution will meet these requirements?
- A. Use a single stage in API Gateway. Create a Lambda function for each environment. Configure API clients to send a query parameter that indicates the environment and the specific Lambda function.
- B. Use multiple stages in API Gateway. Create a single Lambda function for all environments. Add different code blocks for different environments in the Lambda function based on Lambda environment variables.
- C. Use multiple stages in API Gateway. Create a Lambda function for each environment. Configure API Gateway stage variables to route traffic to the Lambda function in different environments.
- D. Use a single stage in API Gateway. Configure API clients to send a query parameter that indicates the environment. Add different code blocks for different environments in the Lambda function to match the value of the query parameter.
Correct Answer:
C
🗳️
A developer creates an AWS Lambda function that retrieves and groups data from several public API
endpoints. The Lambda function has been updated and configured to connect to the private subnet of a
VPC. An internet gateway is attached to the VPC. The VPC uses the default network ACL and security
group configurations.
The developer finds that the Lambda function can no longer access the
public API. The developer has ensured that the public API is accessible, but the Lambda function
cannot connect to the API
How should the developer fix the connection issue?
- A. Ensure that the network ACL allows outbound traffic to the public internet.
- B. Ensure that the security group allows outbound traffic to the public internet.
- C. Ensure that outbound traffic from the private subnet is routed to a public NAT gateway.
- D. Ensure that outbound traffic from the private subnet is routed to a new internet gateway.
Correct Answer:
A
🗳️
Dushank
1 month, 4 weeks agoNaj_64
2 months, 2 weeks agocmonthatsme
3 months agoParsons
3 months agocloudenthusiast
3 months ago
A developer needs to store configuration variables for an application. The developer needs to set an
expiration date and time for the configuration. The developer wants to receive notifications before
the configuration expires.
Which solution will meet these requirements with the LEAST
operational overhead?
- A. Create a standard parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
- B. Create a standard parameter in AWS Systems Manager Parameter Store. Create an AWS Lambda function to expire the configuration and to send Amazon Simple Notification Service (Amazon SNS) notifications.
- C. Create an advanced parameter in AWS Systems Manager Parameter Store. Set Expiration and ExpirationNotification policy types.
- D. Create an advanced parameter in AWS Systems Manager Parameter Store. Create an Amazon EC2 instance with a cron job to expire the configuration and to send notifications.
Correct Answer:
D
🗳️
worseforwear
3 months agocmonthatsme
3 months agocloudenthusiast
3 months ago
A company is developing a serverless application that consists of various AWS Lambda functions
behind Amazon API Gateway APIs. A developer needs to automate the deployment of Lambda function
code. The developer will deploy updated Lambda functions with AWS CodeDeploy. The deployment must
minimize the exposure of potential errors to end users. When the application is in production, the
application cannot experience downtime outside the specified maintenance window.
Which
deployment configuration will meet these requirements with the LEAST deployment time?
- A. Use the AWS CodeDeploy in-place deployment configuration for the Lambda functions. Shift all traffic immediately after deployment.
- B. Use the AWS CodeDeploy linear deployment configuration to shift 10% of the traffic every minute.
- C. Use the AWS CodeDeploy all-at-once deployment configuration to shift all traffic to the updated versions immediately.
- D. Use the AWS CodeDeploy predefined canary deployment configuration to shift 10% of the traffic immediately and shift the remaining traffic after 5 minutes.
Correct Answer:
A
🗳️
jingle4944
1 week, 6 days agopasshojaun
2 weeks, 5 days agoJaimoo
1 week, 6 days agoYuxing_Li
2 months, 1 week agolove777
2 months, 2 weeks agoParsons
3 months agocloudenthusiast
3 months ago
A company created four AWS Lambda functions that connect to a relational database server that runs
on an Amazon RDS instance. A security team requires the company to automatically change the database
password every 30 days.
Which solution will meet these requirements MOST securely?
- A. Store the database credentials in the environment variables of the Lambda function. Deploy the Lambda function with the new credentials every 30 days.
- B. Store the database credentials in AWS Secrets Manager. Configure a 30-day rotation schedule for the credentials.
- C. Store the database credentials in AWS Systems Manager Parameter Store secure strings. Configure a 30-day schedule for the secure strings.
- D. Store the database credentials in an Amazon S3 bucket that uses server-side encryption with customer-provided encryption keys (SSE-C). Configure a 30-day key rotation schedule for the customer key.
Correct Answer:
C
🗳️
Dushank
1 month, 4 weeks agoRaidenKurosaki
3 months agoParsons
3 months agocloudenthusiast
3 months agoniks1221
3 months ago
A developer is setting up a deployment pipeline. The pipeline includes an AWS CodeBuild build stage
that requires access to a database to run integration tests. The developer is using a buildspec.yml
file to configure the database connection. Company policy requires automatic rotation of all
database credentials.
Which solution will handle the database credentials MOST securely?
- A. Retrieve the credentials from variables that are hardcoded in the buildspec.yml file. Configure an AWS Lambda function to rotate the credentials.
- B. Retrieve the credentials from an environment variable that is linked to a SecureString parameter in AWS Systems Manager Parameter Store. Configure Parameter Store for automatic rotation.
- C. Retrieve the credentials from an environment variable that is linked to an AWS Secrets Manager secret. Configure Secrets Manager for automatic rotation.
- D. Retrieve the credentials from an environment variable that contains the connection string in plaintext. Configure an Amazon EventBridge event to rotate the credentials.
Correct Answer:
A
🗳️
cmonthatsme
3 months agoParsons
3 months agocloudenthusiast
3 months ago
A company is developing a serverless multi-tier application on AWS. The company will build the
serverless logic tier by using Amazon API Gateway and AWS Lambda.
While the company builds the
logic tier, a developer who works on the frontend of the application must develop integration tests.
The tests must cover both positive and negative scenarios, depending on success and error HTTP
status codes.
Which solution will meet these requirements with the LEAST effort?
- A. Set up a mock integration for API methods in API Gateway. In the integration request from Method Execution, add simple logic to return either a success or error based on HTTP status code. In the integration response, add messages that correspond to the HTTP status codes.
- B. Create two mock integration resources for API methods in API Gateway. In the integration request, return a success HTTP status code for one resource and an error HTTP status code for the other resource. In the integration response, add messages that correspond to the HTTP status codes.
- C. Create Lambda functions to perform tests. Add simple logic to return either success or error, based on the HTTP status codes. Build an API Gateway Lambda integration. Select appropriate Lambda functions that correspond to the HTTP status codes.
- D. Create a Lambda function to perform tests. Add simple logic to return either success or error-based HTTP status codes. Create a mock integration in API Gateway. Select the Lambda function that corresponds to the HTTP status codes.
Correct Answer:
C
🗳️
cloudenthusiast
3 months ago
Users are reporting errors in an application. The application consists of several microservices that
are deployed on Amazon Elastic Container Service (Amazon ECS) with AWS Fargate.
Which
combination of steps should a developer take to fix the errors? (Choose two.)
- A. Deploy AWS X-Ray as a sidecar container to the microservices. Update the task role policy to allow access to the X-Ray API.
- B. Deploy AWS X-Ray as a daemonset to the Fargate cluster. Update the service role policy to allow access to the X-Ray API.
- C. Instrument the application by using the AWS X-Ray SDK. Update the application to use the PutXrayTrace API call to communicate with the X-Ray API.
- D. Instrument the application by using the AWS X-Ray SDK. Update the application to communicate with the X-Ray daemon.
- E. Instrument the ECS task to send the stdout and stderr output to Amazon CloudWatch Logs. Update the task role policy to allow the cloudwatch:PullLogs action.
Correct Answer:
A
🗳️
Nagasoracle
2 weeks, 5 days agoIamtany
1 month, 3 weeks agoClaire_KMT
3 weeks, 3 days agofossil123
2 months agolove777
2 months, 2 weeks agoAWSdeveloper08
2 months, 4 weeks ago
A developer is creating an application for a company. The application needs to read the file doc.txt
that is placed in the root folder of an Amazon S3 bucket that is named DOC-EXAMPLE-BUCKET. The
company’s security team requires the principle of least privilege to be applied to the application’s
IAM policy.
Which IAM policy statement will meet these security requirements?
-
A.
-
B.
-
C.
-
D.
Correct Answer:
D
🗳️
A company has an application that uses AWS CodePipeline to automate its continuous integration and
continuous delivery (CI/CD) workflow. The application uses AWS CodeCommit for version control. A
developer who was working on one of the tasks did not pull the most recent changes from the main
branch. A week later, the developer noticed merge conflicts.
How can the developer resolve
the merge conflicts in the developer's branch with the LEAST development effort?
- A. Clone the repository. Create a new branch. Update the branch with the changes.
- B. Create a new branch. Apply the changes from the previous branch.
- C. Use the Commit Visualizer view to compare the commits when a feature was added. Fix the merge conflicts.
- D. Stop the pull from the main branch to the feature branch. Rebase the feature branch from the main branch.
Correct Answer:
D
🗳️
Passexam4sure_com
3 weeks, 2 days agoClaire_KMT
3 weeks, 3 days agoIamtany
1 month, 3 weeks agoDhiegoPimenta
2 months, 1 week agolove777
2 months, 2 weeks ago[Removed]
2 months, 4 weeks agoAWSdeveloper08
2 months, 4 weeks ago
A developer wants to add request validation to a production environment Amazon API Gateway API. The
developer needs to test the changes before the API is deployed to the production environment. For
the test, the developer will send test requests to the API through a testing tool.
Which
solution will meet these requirements with the LEAST operational overhead?
- A. Export the existing API to an OpenAPI file. Create a new API. Import the OpenAPI file. Modify the new API to add request validation. Perform the tests. Modify the existing API to add request validation. Deploy the existing API to production.
- B. Modify the existing API to add request validation. Deploy the updated API to a new API Gateway stage. Perform the tests. Deploy the updated API to the API Gateway production stage.
- C. Create a new API. Add the necessary resources and methods, including new request validation. Perform the tests. Modify the existing API to add request validation. Deploy the existing API to production
- D. Clone the existing API. Modify the new API to add request validation. Perform the tests. Modify the existing API to add request validation. Deploy the existing API to production.
Correct Answer:
B
🗳️
An online food company provides an Amazon API Gateway HTTP API to receive orders for partners. The
API is integrated with an AWS Lambda function. The Lambda function stores the orders in an Amazon
DynamoDB table.
The company expects to onboard additional partners. Some of the partners
require additional Lambda functions to receive orders. The company has created an Amazon S3 bucket.
The company needs to store all orders and updates in the S3 bucket for future analysis.
How
can the developer ensure that all orders and updates are stored to Amazon S3 with the LEAST
development effort?
- A. Create a new Lambda function and a new API Gateway API endpoint. Configure the new Lambda function to write to the S3 bucket. Modify the original Lambda function to post updates to the new API endpoint.
- B. Use Amazon Kinesis Data Streams to create a new data stream. Modify the Lambda function to publish orders to the data stream. Configure the data stream to write to the S3 bucket.
- C. Enable DynamoDB Streams on the DynamoDB table. Create a new Lambda function. Associate the stream’s Amazon Resource Name (ARN) with the Lambda function. Configure the Lambda function to write to the S3 bucket as records appear in the table's stream.
- D. Modify the Lambda function to publish to a new Amazon Simple Notification Service (Amazon SNS) topic as the Lambda function receives orders. Subscribe a new Lambda function to the topic. Configure the new Lambda function to write to the S3 bucket as updates come through the topic.
Correct Answer:
C
🗳️
A company’s website runs on an Amazon EC2 instance and uses Auto Scaling to scale the environment
during peak times. Website users across the world are experiencing high latency due to static
content on the EC2 instance, even during non-peak hours.
Which combination of steps will
resolve the latency issue? (Choose two.)
- A. Double the Auto Scaling group’s maximum number of servers.
- B. Host the application code on AWS Lambda.
- C. Scale vertically by resizing the EC2 instances.
- D. Create an Amazon CloudFront distribution to cache the static content.
- E. Store the application’s static content in Amazon S3.
Correct Answer:
DE
🗳️
Digo30sp
1 month ago
A company has an Amazon S3 bucket containing premier content that it intends to make available to
only paid subscribers of its website. The S3 bucket currently has default permissions of all objects
being private to prevent inadvertent exposure of the premier content to non-paying website
visitors.
How can the company limit the ability to download a premier content file in the S3
bucket to paid subscribers only?
- A. Apply a bucket policy that allows anonymous users to download the content from the S3 bucket.
- B. Generate a pre-signed object URL for the premier content file when a paid subscriber requests a download.
- C. Add a bucket policy that requires multi-factor authentication for requests to access the S3 bucket objects.
- D. Enable server-side encryption on the S3 bucket for data protection against the non-paying website visitors.
Correct Answer:
B
🗳️
Digo30sp
1 month ago
A developer is creating an AWS Lambda function that searches for items from an Amazon DynamoDB table
that contains customer contact information. The DynamoDB table items have the customer’s
email_address as the partition key and additional properties such as customer_type, name and
job_title.
The Lambda function runs whenever a user types a new character into the
customer_type text input. The developer wants the search to return partial matches of all the
email_address property of a particular customer_type. The developer does not want to recreate the
DynamoDB table.
What should the developer do to meet these requirements?
- A. Add a global secondary index (GSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key. Perform a query operation on the GSI by using the begins_with key condition expression with the email_address property.
- B. Add a global secondary index (GSI) to the DynamoDB table with email_address as the partition key and customer_type as the sort key. Perform a query operation on the GSI by using the begins_with key condition expression with the email_address property.
- C. Add a local secondary index (LSI) to the DynamoDB table with customer_type as the partition key and email_address as the sort key. Perform a query operation on the LSI by using the begins_with key condition expression with the email_address property.
- D. Add a local secondary index (LSI) to the DynamoDB table with job_title as the partition key and email_address as the sort key. Perform a query operation on the LSI by using the begins_with key condition expression with the email_address property.
Correct Answer:
D
🗳️
Patel_ajay745
1 month agoDigo30sp
1 month ago
A developer is building an application that uses AWS API Gateway APIs, AWS Lambda functions, and AWS
DynamoDB tables. The developer uses the AWS Serverless Application Model (AWS SAM) to build and run
serverless applications on AWS. Each time the developer pushes changes for only to the Lambda
functions, all the artifacts in the application are rebuilt.
The developer wants to implement
AWS SAM Accelerate by running a command to only redeploy the Lambda functions that have
changed.
Which command will meet these requirements?
- A. sam deploy --force-upload
- B. sam deploy --no-execute-changeset
- C. sam package
- D. sam sync --watch
Correct Answer:
C
🗳️
Digo30sp
1 month ago
A developer is building an application that gives users the ability to view bank accounts from
multiple sources in a single dashboard. The developer has automated the process to retrieve API
credentials for these sources. The process invokes an AWS Lambda function that is associated with an
AWS CloudFormation custom resource.
The developer wants a solution that will store the API
credentials with minimal operational overhead.
Which solution will meet these requirements in
the MOST secure way?
- A. Add an AWS Secrets Manager GenerateSecretString resource to the CloudFormation template. Set the value to reference new credentials for the CloudFormation resource.
- B. Use the AWS SDK ssm:PutParameter operation in the Lambda function from the existing custom resource to store the credentials as a parameter. Set the parameter value to reference the new credentials. Set the parameter type to SecureString.
- C. Add an AWS Systems Manager Parameter Store resource to the CloudFormation template. Set the CloudFormation resource value to reference the new credentials. Set the resource NoEcho attribute to true.
- D. Use the AWS SDK ssm:PutParameter operation in the Lambda function from the existing custom resource to store the credentials as a parameter. Set the parameter value to reference the new credentials. Set the parameter NoEcho attribute to true.
Correct Answer:
D
🗳️
ut18
1 week, 6 days agoBolu_Jay
2 weeks agoJing2023
3 weeks, 5 days agodilleman
3 weeks, 6 days agoDigo30sp
1 month ago
A developer is trying to get data from an Amazon DynamoDB table called demoman-table. The developer
configured the AWS CLI to use a specific IAM user’s credentials and ran the following
command:
aws dynamodb get-item --table-name demoman-table --key '{"id":
{"N":"1993"}}'
The command returned errors and no rows were returned.
What is the MOST
likely cause of these issues?
- A. The command is incorrect; it should be rewritten to use put-item with a string argument.
- B. The developer needs to log a ticket with AWS Support to enable access to the demoman-table.
- C. Amazon DynamoDB cannot be accessed from the AWS CLI and needs to be called via the REST API.
- D. The IAM user needs an associated policy with read access to demoman-table.
Correct Answer:
A
🗳️
Digo30sp
1 month ago
An organization is using Amazon CloudFront to ensure that its users experience low-latency access to
its web application. The organization has identified a need to encrypt all traffic between users and
CloudFront, and all traffic between CloudFront and the web application.
How can these
requirements be met? (Choose two.)
- A. Use AWS KMS to encrypt traffic between CloudFront and the web application.
- B. Set the Origin Protocol Policy to “HTTPS Only”.
- C. Set the Origin’s HTTP Port to 443.
- D. Set the Viewer Protocol Policy to “HTTPS Only” or “Redirect HTTP to HTTPS”.
- E. Enable the CloudFront option Restrict Viewer Access.
Correct Answer:
BD
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is planning to migrate on-premises company data to Amazon S3. The data must be
encrypted, and the encryption keys must support automatic annual rotation. The company must use AWS
Key Management Service (AWS KMS) to encrypt the data.
Which type of keys should the developer
use to meet these requirements?
- A. Amazon S3 managed keys
- B. Symmetric customer managed keys with key material that is generated by AWS
- C. Asymmetric customer managed keys with key material that is generated by AWS
- D. Symmetric customer managed keys with imported key material
Correct Answer:
D
🗳️
wonder_man
1 week, 3 days agoPrakashM14
3 weeks, 3 days agoPrakashM14
3 weeks, 3 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A team of developers is using an AWS CodePipeline pipeline as a continuous integration and
continuous delivery (CI/CD) mechanism for a web application. A developer has written unit tests to
programmatically test the functionality of the application code. The unit tests produce a test
report that shows the results of each individual check. The developer now wants to run these tests
automatically during the CI/CD process.
Which solution will meet this requirement with the
LEAST operational effort?
-
A.
Write a Git pre-commit hook that runs the tests before every commit. Ensure that each
developer who is working on the project has the pre-commit hook installed locally. Review
the test report and resolve any issues before pushing changes to AWS CodeCommit.
-
B.
Add a new stage to the pipeline. Use AWS CodeBuild as the provider. Add the new stage after
the stage that deploys code revisions to the test environment. Write a buildspec that fails
the CodeBuild stage if any test does not pass. Use the test reports feature of CodeBuild to
integrate the report with the CodeBuild console. View the test results in CodeBuild. Resolve
any issues.
-
C.
Add a new stage to the pipeline. Use AWS CodeBuild as the provider. Add the new stage before
the stage that deploys code revisions to the test environment. Write a buildspec that fails
the CodeBuild stage if any test does not pass. Use the test reports feature of CodeBuild to
integrate the report with the CodeBuild console. View the test results in CodeBuild. Resolve
any issues.
- D. Add a new stage to the pipeline. Use Jenkins as the provider. Configure CodePipeline to use Jenkins to run the unit tests. Write a Jenkinsfile that fails the stage if any test does not pass. Use the test report plugin for Jenkins to integrate the report with the Jenkins dashboard. View the test results in Jenkins. Resolve any issues.
Correct Answer:
D
🗳️
Cerakoted
3 weeks, 5 days agoDigo30sp
1 month ago
A company has multiple Amazon VPC endpoints in the same VPC. A developer needs to configure an
Amazon S3 bucket policy so users can access an S3 bucket only by using these VPC
endpoints.
Which solution will meet these requirements?
- A. Create multiple S3 bucket polices by using each VPC endpoint ID that have the aws:SourceVpce value in the StringNotEquals condition.
- B. Create a single S3 bucket policy that has the aws:SourceVpc value and in the StringNotEquals condition to use VPC ID.
- C. Create a single S3 bucket policy that has the aws:SourceVpce value and in the StringNotEquals condition to use vpce*.
- D. Create a single S3 bucket policy that has multiple aws:sourceVpce value in the StringNotEquals condition. Repeat for all the VPC endpoint IDs.
Correct Answer:
C
🗳️
PrakashM14
3 weeks, 3 days agodilleman
3 weeks, 6 days agoDigo30sp
1 month ago
A company uses a custom root certificate authority certificate chain (Root CA Cert) that is 10 KB in
size to generate SSL certificates for its on-premises HTTPS endpoints. One of the company’s
cloud-based applications has hundreds of AWS Lambda functions that pull data from these endpoints. A
developer updated the trust store of the Lambda execution environment to use the Root CA Cert when
the Lambda execution environment is initialized. The developer bundled the Root CA Cert as a text
file in the Lambda deployment bundle.
After 3 months of development, the Root CA Cert is no
longer valid and must be updated. The developer needs a more efficient solution to update the Root
CA Cert for all deployed Lambda functions. The solution must not include rebuilding or updating all
Lambda functions that use the Root CA Cert. The solution must also work for all development,
testing, and production environments. Each environment is managed in a separate AWS
account.
Which combination of steps should the developer take to meet these requirements MOST
cost-effectively? (Choose two.)
- A. Store the Root CA Cert as a secret in AWS Secrets Manager. Create a resource-based policy. Add IAM users to allow access to the secret.
- B. Store the Root CA Cert as a SecureString parameter in AWS Systems Manager Parameter Store. Create a resource-based policy. Add IAM users to allow access to the policy.
- C. Store the Root CA Cert in an Amazon S3 bucket. Create a resource-based policy to allow access to the bucket.
- D. Refactor the Lambda code to load the Root CA Cert from the Root CA Cert’s location. Modify the runtime trust store inside the Lambda function handler.
- E. Refactor the Lambda code to load the Root CA Cert from the Root CA Cert’s location. Modify the runtime trust store outside the Lambda function handler.
Correct Answer:
CE
🗳️
Rameez1
2 weeks, 1 day agoTallManDan
2 weeks, 6 days agoPrakashM14
3 weeks, 3 days agodilleman
3 weeks, 6 days agoDigo30sp
1 month ago
A developer maintains applications that store several secrets in AWS Secrets Manager. The
applications use secrets that have changed over time. The developer needs to identify required
secrets that are still in use. The developer does not want to cause any application
downtime.
What should the developer do to meet these requirements?
- A. Configure an AWS CloudTrail log file delivery to an Amazon S3 bucket. Create an Amazon CloudWatch alarm for the GetSecretValue Secrets Manager API operation requests.
- B. Create a secretsmanager-secret-unused AWS Config managed rule. Create an Amazon EventBridge rule to initiate notifications when the AWS Config managed rule is met.
- C. Deactivate the applications secrets and monitor the applications error logs temporarily.
- D. Configure AWS X-Ray for the applications. Create a sampling rule to match the GetSecretValue Secrets Manager API operation requests.
Correct Answer:
A
🗳️
chris_777
2 days, 3 hours agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is writing a serverless application that requires an AWS Lambda function to be invoked
every 10 minutes.
What is an automated and serverless way to invoke the function?
- A. Deploy an Amazon EC2 instance based on Linux, and edit its /etc/crontab file by adding a command to periodically invoke the Lambda function.
- B. Configure an environment variable named PERIOD for the Lambda function. Set the value to 600.
- C. Create an Amazon EventBridge rule that runs on a regular schedule to invoke the Lambda function.
- D. Create an Amazon Simple Notification Service (Amazon SNS) topic that has a subscription to the Lambda function with a 600-second timer.
Correct Answer:
C
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company is using Amazon OpenSearch Service to implement an audit monitoring system. A developer
needs to create an AWS CloudFormation custom resource that is associated with an AWS Lambda function
to configure the OpenSearch Service domain. The Lambda function must access the OpenSearch Service
domain by using OpenSearch Service internal master user credentials.
What is the MOST secure
way to pass these credentials to the Lambda function?
- A. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain’s MasterUserOptions and the Lambda function’s environment variable. Set the NoEcho attribute to true.
- B. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain’s MasterUserOptions and to create a parameter in AWS Systems Manager Parameter Store. Set the NoEcho attribute to true. Create an IAM role that has the ssm:GetParameter permission. Assign the role to the Lambda function. Store the parameter name as the Lambda function’s environment variable. Resolve the parameter’s value at runtime.
- C. Use a CloudFormation parameter to pass the master user credentials at deployment to the OpenSearch Service domain’s MasterUserOptions and the Lambda function’s environment variable. Encrypt the parameter’s value by using the AWS Key Management Service (AWS KMS) encrypt command.
- D. Use CloudFormation to create an AWS Secrets Manager secret. Use a CloudFormation dynamic reference to retrieve the secret’s value for the OpenSearch Service domain’s MasterUserOptions. Create an IAM role that has the secretsmanager:GetSecretValue permission. Assign the role to the Lambda function. Store the secret’s name as the Lambda function’s environment variable. Resolve the secret’s value at runtime.
Correct Answer:
D
🗳️
Digo30sp
1 month ago
An application runs on multiple EC2 instances behind an ELB.
Where is the session data best
written so that it can be served reliably across multiple requests?
- A. Write data to Amazon ElastiCache.
- B. Write data to Amazon Elastic Block Store.
- C. Write data to Amazon EC2 Instance Store.
- D. Write data to the root filesystem.
Correct Answer:
A
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
An ecommerce application is running behind an Application Load Balancer. A developer observes some
unexpected load on the application during non-peak hours. The developer wants to analyze patterns
for the client IP addresses that use the application.
Which HTTP header should the developer
use for this analysis?
- A. The X-Forwarded-Proto header
- B. The X-Forwarded-Host header
- C. The X-Forwarded-For header
- D. The X-Forwarded-Port header
Correct Answer:
A
🗳️
chris_777
2 days, 3 hours agoCerakoted
3 weeks, 6 days agoDigo30sp
1 month ago
A developer migrated a legacy application to an AWS Lambda function. The function uses a third-party
service to pull data with a series of API calls at the end of each month. The function then
processes the data to generate the monthly reports. The function has been working with no issues so
far.
The third-party service recently issued a restriction to allow a fixed number of API
calls each minute and each day. If the API calls exceed the limit for each minute or each day, then
the service will produce errors. The API also provides the minute limit and daily limit in the
response header. This restriction might extend the overall process to multiple days because the
process is consuming more API calls than the available limit.
What is the MOST operationally
efficient way to refactor the serverless application to accommodate this change?
- A. Use an AWS Step Functions state machine to monitor API failures. Use the Wait state to delay calling the Lambda function.
- B. Use an Amazon Simple Queue Service (Amazon SQS) queue to hold the API calls. Configure the Lambda function to poll the queue within the API threshold limits.
- C. Use an Amazon CloudWatch Logs metric to count the number of API calls. Configure an Amazon CloudWatch alarm that stops the currently running instance of the Lambda function when the metric exceeds the API threshold limits.
- D. Use Amazon Kinesis Data Firehose to batch the API calls and deliver them to an Amazon S3 bucket with an event notification to invoke the Lambda function.
Correct Answer:
B
🗳️
wonder_man
1 week, 3 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer must analyze performance issues with production-distributed applications written as AWS
Lambda functions. These distributed Lambda applications invoke other components that make up the
applications.
How should the developer identify and troubleshoot the root cause of the
performance issues in production?
- A. Add logging statements to the Lambda functions, then use Amazon CloudWatch to view the logs.
- B. Use AWS CloudTrail and then examine the logs.
- C. Use AWS X-Ray, then examine the segments and errors.
- D. Run Amazon Inspector agents and then analyze performance.
Correct Answer:
C
🗳️
Digo30sp
1 month ago
A developer wants to deploy a new version of an AWS Elastic Beanstalk application. During
deployment, the application must maintain full capacity and avoid service interruption.
Additionally, the developer must minimize the cost of additional resources that support the
deployment.
Which deployment method should the developer use to meet these requirements?
- A. All at once
- B. Rolling with additional batch
- C. Blue/green
- D. Immutable
Correct Answer:
B
🗳️
Roimasu
1 week agoNinjaCloud
1 week, 1 day agoNagasoracle
2 weeks, 5 days agoLearning4life
3 weeks, 2 days agoCerakoted
3 weeks, 5 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer has observed an increase in bugs in the AWS Lambda functions that a development team has
deployed in its Node.js application. To minimize these bugs, the developer wants to implement
automated testing of Lambda functions in an environment that closely simulates the Lambda
environment.
The developer needs to give other developers the ability to run the tests
locally. The developer also needs to integrate the tests into the team’s continuous integration and
continuous delivery (CI/CD) pipeline before the AWS Cloud Development Kit (AWS CDK)
deployment.
Which solution will meet these requirements?
- A. Create sample events based on the Lambda documentation. Create automated test scripts that use the cdk local invoke command to invoke the Lambda functions. Check the response. Document the test scripts for the other developers on the team. Update the CI/CD pipeline to run the test scripts.
- B. Install a unit testing framework that reproduces the Lambda execution environment. Create sample events based on the Lambda documentation. Invoke the handler function by using a unit testing framework. Check the response. Document how to run the unit testing framework for the other developers on the team. Update the CI/CD pipeline to run the unit testing framework.
- C. Install the AWS Serverless Application Model (AWS SAM) CLI tool. Use the sam local generate-event command to generate sample events for the automated tests. Create automated test scripts that use the sam local invoke command to invoke the Lambda functions. Check the response. Document the test scripts for the other developers on the team. Update the CI/CD pipeline to run the test scripts.
- D. Create sample events based on the Lambda documentation. Create a Docker container from the Node.js base image to invoke the Lambda functions. Check the response. Document how to run the Docker container for the other developers on the team. Update the CI/CD pipeline to run the Docker container.
Correct Answer:
B
🗳️
Digo30sp
1 month ago
A developer is troubleshooting an application that uses Amazon DynamoDB in the us-west-2 Region. The
application is deployed to an Amazon EC2 instance. The application requires read-only permissions to
a table that is named Cars. The EC2 instance has an attached IAM role that contains the following
IAM policy:
When
the application tries to read from the Cars table, an Access Denied error occurs.
How can the
developer resolve this error?
- A. Modify the IAM policy resource to be “arn:aws:dynamodb:us-west-2:account-id:table/*”.
- B. Modify the IAM policy to include the dynamodb:* action.
- C. Create a trust policy that specifies the EC2 service principal. Associate the role with the policy.
- D. Create a trust relationship between the role and dynamodb.amazonaws.com.
Correct Answer:
D
🗳️
LemonGremlin
2 weeks, 4 days agoPrakashM14
2 weeks, 5 days agoDigo30sp
1 month agoWhen using the AWS Encryption SDK, how does the developer keep track of the data encryption keys used to encrypt data?
- A. The developer must manually keep track of the data encryption keys used for each data object.
- B. The SDK encrypts the data encryption key and stores it (encrypted) as part of the returned ciphertext.
- C. The SDK stores the data encryption keys automatically in Amazon S3.
- D. The data encryption key is stored in the Userdata for the EC2 instance.
Correct Answer:
C
🗳️
An application that runs on AWS Lambda requires access to specific highly confidential objects in an
Amazon S3 bucket. In accordance with the principle of least privilege, a company grants access to
the S3 bucket by using only temporary credentials.
How can a developer configure access to
the S3 bucket in the MOST secure way?
- A. Hardcode the credentials that are required to access the S3 objects in the application code. Use the credentials to access the required S3 objects.
- B. Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID in AWS Secrets Manager. Configure the application to retrieve the Secrets Manager secret and use the credentials to access the S3 objects.
- C. Create a Lambda function execution role. Attach a policy to the role that grants access to specific objects in the S3 bucket.
- D. Create a secret access key and access key ID with permission to access the S3 bucket. Store the key and key ID as environment variables in Lambda. Use the environment variables to access the required S3 objects.
Correct Answer:
D
🗳️
LemonGremlin
2 weeks, 6 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month agodezoito
3 weeks ago
A developer has code that is stored in an Amazon S3 bucket. The code must be deployed as an AWS
Lambda function across multiple accounts in the same AWS Region as the S3 bucket. An AWS
CloudFormation template that runs for each account will deploy the Lambda function.
What is
the MOST secure way to allow CloudFormation to access the Lambda code in the S3 bucket?
- A. Grant the CloudFormation service role the S3 ListBucket and GetObject permissions. Add a bucket policy to Amazon S3 with the principal of “AWS”: [account numbers].
- B. Grant the CloudFormation service role the S3 GetObject permission. Add a bucket policy to Amazon S3 with the principal of “*”.
- C. Use a service-based link to grant the Lambda function the S3 ListBucket and GetObject permissions by explicitly adding the S3 bucket’s account number in the resource.
- D. Use a service-based link to grant the Lambda function the S3 GetObject permission. Add a resource of “*” to allow access to the S3 bucket.
Correct Answer:
A
🗳️
Digo30sp
1 month ago
A developer at a company needs to create a small application that makes the same API call once each
day at a designated time. The company does not have infrastructure in the AWS Cloud yet, but the
company wants to implement this functionality on AWS.
Which solution meets these requirements
in the MOST operationally efficient manner?
- A. Use a Kubernetes cron job that runs on Amazon Elastic Kubernetes Service (Amazon EKS).
- B. Use an Amazon Linux crontab scheduled job that runs on Amazon EC2.
- C. Use an AWS Lambda function that is invoked by an Amazon EventBridge scheduled event.
- D. Use an AWS Batch job that is submitted to an AWS Batch job queue.
Correct Answer:
C
🗳️
A developer is building a serverless application that is based on AWS Lambda. The developer
initializes the AWS software development kit (SDK) outside of the Lambda handler
function.
What is the PRIMARY benefit of this action?
- A. Improves legibility and stylistic convention
- B. Takes advantage of runtime environment reuse
- C. Provides better error handling
- D. Creates a new SDK instance for each invocation
Correct Answer:
B
🗳️
Digo30sp
1 month ago
A company is using Amazon RDS as the backend database for its application. After a recent marketing
campaign, a surge of read requests to the database increased the latency of data retrieval from the
database. The company has decided to implement a caching layer in front of the database. The cached
content must be encrypted and must be highly available.
Which solution will meet these
requirements?
- A. Amazon CloudFront
- B. Amazon ElastiCache for Memcached
- C. Amazon ElastiCache for Redis in cluster mode
- D. Amazon DynamoDB Accelerator (DAX)
Correct Answer:
C
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer at a company recently created a serverless application to process and show data from
business reports. The application’s user interface (UI) allows users to select and start processing
the files. The UI displays a message when the result is available to view. The application uses AWS
Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway
and Lambda functions to create an API to support the UI.
The company’s UI team reports that
the request to process a file is often returning timeout errors because of the size or complexity of
the files. The UI team wants the API to provide an immediate response so that the UI can display a
message while the files are being processed. The backend process that is invoked by the API needs to
send an email message when the report processing is complete.
What should the developer do to
configure the API to meet these requirements?
- A. Change the API Gateway route to add an X-Amz-Invocation-Type header with a static value of ‘Event’ in the integration request. Deploy the API Gateway stage to apply the changes.
- B. Change the configuration of the Lambda function that implements the request to process a file. Configure the maximum age of the event so that the Lambda function will run asynchronously.
- C. Change the API Gateway timeout value to match the Lambda function timeout value. Deploy the API Gateway stage to apply the changes.
- D. Change the API Gateway route to add an X-Amz-Target header with a static value of ‘Async’ in the integration request. Deploy the API Gateway stage to apply the changes.
Correct Answer:
A
🗳️
LemonGremlin
2 weeks, 4 days agokashtelyan
2 weeks, 5 days agoDigo30sp
1 month ago
A developer has an application that is composed of many different AWS Lambda functions. The Lambda
functions all use some of the same dependencies. To avoid security issues, the developer is
constantly updating the dependencies of all of the Lambda functions. The result is duplicated effort
for each function.
How can the developer keep the dependencies of the Lambda functions up to
date with the LEAST additional complexity?
- A. Define a maintenance window for the Lambda functions to ensure that the functions get updated copies of the dependencies.
- B. Upgrade the Lambda functions to the most recent runtime version.
- C. Define a Lambda layer that contains all of the shared dependencies.
- D. Use an AWS CodeCommit repository to host the dependencies in a centralized location.
Correct Answer:
C
🗳️
A mobile app stores blog posts in an Amazon DynamoDB table. Millions of posts are added every day,
and each post represents a single item in the table. The mobile app requires only recent posts. Any
post that is older than 48 hours can be removed.
What is the MOST cost-effective way to
delete posts that are older than 48 hours?
- A. For each item, add a new attribute of type String that has a timestamp that is set to the blog post creation time. Create a script to find old posts with a table scan and remove posts that are older than 48 hours by using the BatchWriteItem API operation. Schedule a cron job on an Amazon EC2 instance once an hour to start the script.
- B. For each item, add a new attribute of type String that has a timestamp that is set to the blog post creation time. Create a script to find old posts with a table scan and remove posts that are older than 48 hours by using the BatchWriteItem API operation. Place the script in a container image. Schedule an Amazon Elastic Container Service (Amazon ECS) task on AWS Fargate that invokes the container every 5 minutes.
- C. For each item, add a new attribute of type Date that has a timestamp that is set to 48 hours after the blog post creation time. Create a global secondary index (GSI) that uses the new attribute as a sort key. Create an AWS Lambda function that references the GSI and removes expired items by using the BatchWriteItem API operation. Schedule the function with an Amazon CloudWatch event every minute.
- D. For each item, add a new attribute of type Number that has a timestamp that is set to 48 hours after the blog post creation time. Configure the DynamoDB table with a TTL that references the new attribute.
Correct Answer:
B
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is modifying an existing AWS Lambda function. While checking the code, the developer
notices hardcoded parameter values for an Amazon RDS for SQL Server user name, password, database,
host, and port. There are also hardcoded parameter values for an Amazon DynamoDB table, an Amazon S3
bucket, and an Amazon Simple Notification Service (Amazon SNS) topic.
The developer wants to
securely store the parameter values outside the code in an encrypted format and wants to turn on
rotation for the credentials. The developer also wants to be able to reuse the parameter values from
other applications and to update the parameter values without modifying code.
Which solution
will meet these requirements with the LEAST operational overhead?
- A. Create an RDS database secret in AWS Secrets Manager. Set the user name, password, database, host, and port. Turn on secret rotation. Create encrypted Lambda environment variables for the DynamoDB table, S3 bucket, and SNS topic.
- B. Create an RDS database secret in AWS Secrets Manager. Set the user name, password, database, host, and port. Turn on secret rotation. Create SecureString parameters in AWS Systems Manager Parameter Store for the DynamoDB table, S3 bucket, and SNS topic.
- C. Create RDS database parameters in AWS Systems Manager Parameter Store for the user name, password, database, host, and port. Create encrypted Lambda environment variables for the DynamoDB table, S3 bucket, and SNS topic. Create a Lambda function and set the logic for the credentials rotation task. Schedule the credentials rotation task in Amazon EventBridge.
- D. Create RDS database parameters in AWS Systems Manager Parameter Store for the user name, password, database, host, and port. Store the DynamoDB table, S3 bucket, and SNS topic in Amazon S3. Create a Lambda function and set the logic for the credentials rotation. Invoke the Lambda function on a schedule.
Correct Answer:
B
🗳️
A developer accesses AWS CodeCommit over SSH. The SSH keys configured to access AWS CodeCommit are
tied to a user with the following permissions:
The
developer needs to create/delete branches.
Which specific IAM permissions need to be added,
based on the principle of least privilege?
-
A.
"codecommit:CreateBranch"
"codecommit:DeleteBranch" - B. "codecommit:Put*"
- C. "codecommit:Update*"
- D. "codecommit:*"
Correct Answer:
B
🗳️
An application that is deployed to Amazon EC2 is using Amazon DynamoDB. The application calls the
DynamoDB REST API. Periodically, the application receives a ProvisionedThroughputExceededException
error when the application writes to a DynamoDB table.
Which solutions will mitigate this
error MOST cost-effectively? (Choose two.)
- A. Modify the application code to perform exponential backoff when the error is received.
- B. Modify the application to use the AWS SDKs for DynamoDB.
- C. Increase the read and write throughput of the DynamoDB table.
- D. Create a DynamoDB Accelerator (DAX) cluster for the DynamoDB table.
- E. Create a second DynamoDB table. Distribute the reads and writes between the two tables.
Correct Answer:
AB
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
When a developer tries to run an AWS CodeBuild project, it raises an error because the length of all
environment variables exceeds the limit for the combined maximum of characters.
What is the
recommended solution?
- A. Add the export LC_ALL="en_US.utf8" command to the pre_build section to ensure POSIX localization.
- B. Use Amazon Cognito to store key-value pairs for large numbers of environment variables.
- C. Update the settings for the build project to use an Amazon S3 bucket for large numbers of environment variables.
- D. Use AWS Systems Manager Parameter Store to store large numbers of environment variables.
Correct Answer:
D
🗳️
A company is expanding the compatibility of its photo-sharing mobile app to hundreds of additional
devices with unique screen dimensions and resolutions. Photos are stored in Amazon S3 in their
original format and resolution. The company uses an Amazon CloudFront distribution to serve the
photos. The app includes the dimension and resolution of the display as GET parameters with every
request.
A developer needs to implement a solution that optimizes the photos that are served
to each device to reduce load time and increase photo quality.
Which solution will meet these
requirements MOST cost-effectively?
- A. Use S3 Batch Operations to invoke an AWS Lambda function to create new variants of the photos with the required dimensions and resolutions. Create a dynamic CloudFront origin that automatically maps the request of each device to the corresponding photo variant.
- B. Use S3 Batch Operations to invoke an AWS Lambda function to create new variants of the photos with the required dimensions and resolutions. Create a Lambda@Edge function to route requests to the corresponding photo variant by using request headers.
- C. Create a Lambda@Edge function that optimizes the photos upon request and returns the photos as a response. Change the CloudFront TTL cache policy to the maximum value possible.
- D. Create a Lambda@Edge function that optimizes the photos upon request and returns the photos as a response. In the same function, store a copy of the processed photos on Amazon S3 for subsequent requests.
Correct Answer:
D
🗳️
jingle4944
18 hours, 52 minutes agout18
1 week, 3 days agoTallManDan
2 weeks, 6 days agoDigo30sp
1 month ago
A company is building an application for stock trading. The application needs sub-millisecond
latency for processing trade requests. The company uses Amazon DynamoDB to store all the trading
data that is used to process each trading request.
A development team performs load testing
on the application and finds that the data retrieval time is higher than expected. The development
team needs a solution that reduces the data retrieval time with the least possible
effort.
Which solution meets these requirements?
- A. Add local secondary indexes (LSIs) for the trading data.
- B. Store the trading data in Amazon S3, and use S3 Transfer Acceleration.
- C. Add retries with exponential backoff for DynamoDB queries.
- D. Use DynamoDB Accelerator (DAX) to cache the trading data.
Correct Answer:
D
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is working on a Python application that runs on Amazon EC2 instances. The developer
wants to enable tracing of application requests to debug performance issues in the
code.
Which combination of actions should the developer take to achieve this goal? (Choose
two.)
- A. Install the Amazon CloudWatch agent on the EC2 instances.
- B. Install the AWS X-Ray daemon on the EC2 instances.
- C. Configure the application to write JSON-formatted logs to /var/log/cloudwatch.
- D. Configure the application to write trace data to /var/log/xray.
- E. Install and configure the AWS X-Ray SDK for Python in the application.
Correct Answer:
CE
🗳️
Digo30sp
1 month ago
A company has an application that runs as a series of AWS Lambda functions. Each Lambda function
receives data from an Amazon Simple Notification Service (Amazon SNS) topic and writes the data to
an Amazon Aurora DB instance.
To comply with an information security policy, the company must
ensure that the Lambda functions all use a single securely encrypted database connection string to
access Aurora.
Which solution will meet these requirements?
- A. Use IAM database authentication for Aurora to enable secure database connections for all the Lambda functions.
- B. Store the credentials and read the credentials from an encrypted Amazon RDS DB instance.
- C. Store the credentials in AWS Systems Manager Parameter Store as a secure string parameter.
- D. Use Lambda environment variables with a shared AWS Key Management Service (AWS KMS) key for encryption.
Correct Answer:
D
🗳️
TallManDan
2 weeks, 6 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is troubleshooting an Amazon API Gateway API. Clients are receiving HTTP 400 response
errors when the clients try to access an endpoint of the API.
How can the developer determine
the cause of these errors?
- A. Create an Amazon Kinesis Data Firehose delivery stream to receive API call logs from API Gateway. Configure Amazon CloudWatch Logs as the delivery stream’s destination.
- B. Turn on AWS CloudTrail Insights and create a trail. Specify the Amazon Resource Name (ARN) of the trail for the stage of the API.
- C. Turn on AWS X-Ray for the API stage. Create an Amazon CloudWatch Logs log group. Specify the Amazon Resource Name (ARN) of the log group for the API stage.
- D. Turn on execution logging and access logging in Amazon CloudWatch Logs for the API stage. Create a CloudWatch Logs log group. Specify the Amazon Resource Name (ARN) of the log group for the API stage.
Correct Answer:
A
🗳️
dezoito
2 weeks, 4 days agoDigo30sp
1 month ago
A company developed an API application on AWS by using Amazon CloudFront, Amazon API Gateway, and
AWS Lambda. The API has a minimum of four requests every second. A developer notices that many API
users run the same query by using the POST method. The developer wants to cache the POST request to
optimize the API resources.
Which solution will meet these requirements?
- A. Configure the CloudFront cache. Update the application to return cached content based upon the default request headers.
- B. Override the cache method in the selected stage of API Gateway. Select the POST method.
- C. Save the latest request response in Lambda /tmp directory. Update the Lambda function to check the /tmp directory.
- D. Save the latest request in AWS Systems Manager Parameter Store. Modify the Lambda function to take the latest request response from Parameter Store.
Correct Answer:
B
🗳️
Jing2023
3 weeks, 3 days agokr5031
3 weeks, 4 days agodilleman
3 weeks, 3 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company is building a microservices application that consists of many AWS Lambda functions. The
development team wants to use AWS Serverless Application Model (AWS SAM) templates to automatically
test the Lambda functions. The development team plans to test a small percentage of traffic that is
directed to new updates before the team commits to a full deployment of the
application.
Which combination of steps will meet these requirements in the MOST
operationally efficient way? (Choose two.)
- A. Use AWS SAM CLI commands in AWS CodeDeploy to invoke the Lambda functions to test the deployment.
- B. Declare the EventInvokeConfig on the Lambda functions in the AWS SAM templates with OnSuccess and OnFailure configurations.
- C. Enable gradual deployments through AWS SAM templates.
- D. Set the deployment preference type to Canary10Percent30Minutes. Use hooks to test the deployment.
- E. Set the deployment preference type to Linear10PercentEvery10Minutes. Use hooks to test the deployment.
Correct Answer:
BD
🗳️
PrakashM14
5 days, 21 hours agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company is using AWS CloudFormation to deploy a two-tier application. The application will use
Amazon RDS as its backend database. The company wants a solution that will randomly generate the
database password during deployment. The solution also must automatically rotate the database
password without requiring changes to the application.
What is the MOST operationally
efficient solution that meets these requirements?
- A. Use an AWS Lambda function as a CloudFormation custom resource to generate and rotate the password.
- B. Use an AWS Systems Manager Parameter Store resource with the SecureString data type to generate and rotate the password.
- C. Use a cron daemon on the application’s host to generate and rotate the password.
- D. Use an AWS Secrets Manager resource to generate and rotate the password.
Correct Answer:
D
🗳️
A developer has been asked to create an AWS Lambda function that is invoked any time updates are
made to items in an Amazon DynamoDB table. The function has been created, and appropriate
permissions have been added to the Lambda execution role. Amazon DynamoDB streams have been enabled
for the table, but the function is still not being invoked.
Which option would enable
DynamoDB table updates to invoke the Lambda function?
- A. Change the StreamViewType parameter value to NEW_AND_OLD_IMAGES for the DynamoDB table.
- B. Configure event source mapping for the Lambda function.
- C. Map an Amazon Simple Notification Service (Amazon SNS) topic to the DynamoDB streams.
- D. Increase the maximum runtime (timeout) setting of the Lambda function.
Correct Answer:
B
🗳️
A developer needs to deploy an application running on AWS Fargate using Amazon ECS. The application
has environment variables that must be passed to a container for the application to
initialize.
How should the environment variables be passed to the container?
- A. Define an array that includes the environment variables under the environment parameter within the service definition.
- B. Define an array that includes the environment variables under the environment parameter within the task definition.
- C. Define an array that includes the environment variables under the entryPoint parameter within the task definition.
- D. Define an array that includes the environment variables under the entryPoint parameter within the service definition.
Correct Answer:
A
🗳️
A development team maintains a web application by using a single AWS RDS, template. The template
defines web servers and an Amazon RDS database. The team uses the CloudFormation template to deploy
the CloudFormation stack to different environments.
During a recent application deployment, a
developer caused the primary development database to be dropped and recreated. The result of this
incident was a loss of data. The team needs to avoid accidental database deletion in the
future.
Which solutions will meet these requirements? (Choose two.)
- A. Add a CloudFormation DeletionPolicy attribute with the Retain value to the database resource.
- B. Update the CloudFormation stack policy to prevent updates to the database.
- C. Modify the database to use a Multi-AZ deployment.
- D. Create a CloudFormation stack set for the web application and database deployments.
- E. Add a CloudFormation DeletionPolicy attribute with the Retain value to the stack.
Correct Answer:
AB
🗳️
A developer is storing sensitive data generated by an application in Amazon S3. The developer wants
to encrypt the data at rest. A company policy requires an audit trail of when the AWS Key Management
Service (AWS KMS) key was used and by whom.
Which encryption option will meet these
requirements?
- A. Server-side encryption with Amazon S3 managed keys (SSE-S3)
- B. Server-side encryption with AWS KMS managed keys (SSE-KMS)
- C. Server-side encryption with customer-provided keys (SSE-C)
- D. Server-side encryption with self-managed keys
Correct Answer:
B
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company has an ecommerce application. To track product reviews, the company’s development team
uses an Amazon DynamoDB table.
Every record includes the following:
• A Review ID, a
16-digit universally unique identifier (UUID)
• A Product ID and User ID, 16-digit UUIDs that
reference other tables
• A Product Rating on a scale of 1-5
• An optional comment from the
user
The table partition key is the Review ID. The most performed query against the table is
to find the 10 reviews with the highest rating for a given product.
Which index will provide
the FASTEST response for this query?
- A. A global secondary index (GSI) with Product ID as the partition key and Product Rating as the sort key
- B. A global secondary index (GSI) with Product ID as the partition key and Review ID as the sort key
- C. A local secondary index (LSI) with Product ID as the partition key and Product Rating as the sort key
- D. A local secondary index (LSI) with Review ID as the partition key and Product ID as the sort key
Correct Answer:
B
🗳️
A company needs to distribute firmware updates to its customers around the world.
Which
service will allow easy and secure control of the access to the downloads at the lowest cost?
- A. Use Amazon CloudFront with signed URLs for Amazon S3.
- B. Create a dedicated Amazon CloudFront Distribution for each customer.
- C. Use Amazon CloudFront with AWS Lambda@Edge.
- D. Use Amazon API Gateway and AWS Lambda to control access to an S3 bucket.
Correct Answer:
A
🗳️
A developer is testing an application that invokes an AWS Lambda function asynchronously. During the
testing phase, the Lambda function fails to process after two retries.
How can the developer
troubleshoot the failure?
- A. Configure AWS CloudTrail logging to investigate the invocation failures.
- B. Configure Dead Letter Queues by sending events to Amazon SQS for investigation.
- C. Configure Amazon Simple Workflow Service to process any direct unprocessed events.
- D. Configure AWS Config to process any direct unprocessed events.
Correct Answer:
B
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company is migrating its PostgreSQL database into the AWS Cloud. The company wants to use a
database that will secure and regularly rotate database credentials. The company wants a solution
that does not require additional programming overhead.
Which solution will meet these
requirements?
- A. Use Amazon Aurora PostgreSQL for the database. Store the database credentials in AWS Systems Manager Parameter Store. Turn on rotation.
- B. Use Amazon Aurora PostgreSQL for the database. Store the database credentials in AWS Secrets Manager. Turn on rotation.
- C. Use Amazon DynamoDB for the database. Store the database credentials in AWS Systems Manager Parameter Store. Turn on rotation.
- D. Use Amazon DynamoDB for the database. Store the database credentials in AWS Secrets Manager. Turn on rotation.
Correct Answer:
C
🗳️
Digo30sp
1 month ago
A developer is creating a mobile application that will not require users to log in.
What is
the MOST efficient method to grant users access to AWS resources?
- A. Use an identity provider to securely authenticate with the application.
- B. Create an AWS Lambda function to create an IAM user when a user accesses the application.
- C. Create credentials using AWS KMS and apply these credentials to users when using the application.
- D. Use Amazon Cognito to associate unauthenticated users with an IAM role that has limited access to resources.
Correct Answer:
D
🗳️
A company has developed a new serverless application using AWS Lambda functions that will be
deployed using the AWS Serverless Application Model (AWS SAM) CLI.
Which step should the
developer complete prior to deploying the application?
- A. Compress the application to a .zip file and upload it into AWS Lambda.
- B. Test the new AWS Lambda function by first tracing it in AWS X-Ray.
- C. Bundle the serverless application using a SAM package.
- D. Create the application environment using the eb create my-env command.
Correct Answer:
B
🗳️
A company wants to automate part of its deployment process. A developer needs to automate the
process of checking for and deleting unused resources that supported previously deployed stacks but
that are no longer used.
The company has a central application that uses the AWS Cloud
Development Kit (AWS CDK) to manage all deployment stacks. The stacks are spread out across multiple
accounts. The developer’s solution must integrate as seamlessly as possible within the current
deployment process.
Which solution will meet these requirements with the LEAST amount of
configuration?
- A. In the central AWS CDK application, write a handler function in the code that uses AWS SDK calls to check for and delete unused resources. Create an AWS CloudFormation template from a JSON file. Use the template to attach the function code to an AWS Lambda function and to invoke the Lambda function when the deployment stack runs.
- B. In the central AWS CDK application, write a handler function in the code that uses AWS SDK calls to check for and delete unused resources. Create an AWS CDK custom resource. Use the custom resource to attach the function code to an AWS Lambda function and to invoke the Lambda function when the deployment stack runs.
- C. In the central AWS CDK, write a handler function in the code that uses AWS SDK calls to check for and delete unused resources. Create an API in AWS Amplify. Use the API to attach the function code to an AWS Lambda function and to invoke the Lambda function when the deployment stack runs.
- D. In the AWS Lambda console, write a handler function in the code that uses AWS SDK calls to check for and delete unused resources. Create an AWS CDK custom resource. Use the custom resource to import the Lambda function into the stack and to invoke the Lambda function when the deployment stack runs.
Correct Answer:
B
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company built a new application in the AWS Cloud. The company automated the bootstrapping of new
resources with an Auto Scaling group by using AWS CloudFormation templates. The bootstrap scripts
contain sensitive data.
The company needs a solution that is integrated with CloudFormation
to manage the sensitive data in the bootstrap scripts.
Which solution will meet these
requirements in the MOST secure way?
- A. Put the sensitive data into a CloudFormation parameter. Encrypt the CloudFormation templates by using an AWS Key Management Service (AWS KMS) key.
- B. Put the sensitive data into an Amazon S3 bucket. Update the CloudFormation templates to download the object from Amazon S3 during bootstrap.
- C. Put the sensitive data into AWS Systems Manager Parameter Store as a secure string parameter. Update the CloudFormation templates to use dynamic references to specify template values.
- D. Put the sensitive data into Amazon Elastic File System (Amazon EFS). Enforce EFS encryption after file system creation. Update the CloudFormation templates to retrieve data from Amazon EFS.
Correct Answer:
D
🗳️
kashtelyan
2 weeks, 5 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A company needs to set up secure database credentials for all its AWS Cloud resources. The company’s
resources include Amazon RDS DB instances, Amazon DocumentDB clusters, and Amazon Aurora DB
instances. The company’s security policy mandates that database credentials be encrypted at rest and
rotated at a regular interval.
Which solution will meet these requirements MOST securely?
- A. Set up IAM database authentication for token-based access. Generate user tokens to provide centralized access to RDS DB instances, Amazon DocumentDB clusters, and Aurora DB instances.
- B. Create parameters for the database credentials in AWS Systems Manager Parameter Store. Set the Type parameter to SecureString. Set up automatic rotation on the parameters.
- C. Store the database access credentials as an encrypted Amazon S3 object in an S3 bucket. Block all public access on the S3 bucket. Use S3 server-side encryption to set up automatic rotation on the encryption key.
- D. Create an AWS Lambda function by using the SecretsManagerRotationTemplate template in the AWS Secrets Manager console. Create secrets for the database credentials in Secrets Manager. Set up secrets rotation on a schedule.
Correct Answer:
C
🗳️
nickolaj
2 weeks, 3 days agodilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer has created an AWS Lambda function that makes queries to an Amazon Aurora MySQL DB
instance. When the developer performs a test, the DB instance shows an error for too many
connections.
Which solution will meet these requirements with the LEAST operational effort?
- A. Create a read replica for the DB instance. Query the replica DB instance instead of the primary DB instance.
- B. Migrate the data to an Amazon DynamoDB database.
- C. Configure the Amazon Aurora MySQL DB instance for Multi-AZ deployment.
- D. Create a proxy in Amazon RDS Proxy. Query the proxy instead of the DB instance.
Correct Answer:
D
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is creating a new REST API by using Amazon API Gateway and AWS Lambda. The development
team tests the API and validates responses for the known use cases before deploying the API to the
production environment.
The developer wants to make the REST API available for testing by
using API Gateway locally.
Which AWS Serverless Application Model Command Line Interface (AWS
SAM CLI) subcommand will meet these requirements?
- A. Sam local invoke
- B. Sam local generate-event
- C. Sam local start-lambda
- D. Sam local start-api
Correct Answer:
D
🗳️
Digo30sp
1 month ago
A company has a serverless application on AWS that uses a fleet of AWS Lambda functions that have
aliases. The company regularly publishes new Lambda function by using an in-house deployment
solution. The company wants to improve the release process and to use traffic shifting. A newly
published function version should initially make available only to a fixed percentage of production
users.
Which solution will meet these requirements?
- A. Configure routing on the alias of the new function by using a weighted alias.
- B. Configure a canary deployment type for Lambda.
- C. Configure routing on the new versions by using environment variables.
- D. Configure a linear deployment type for Lambda.
Correct Answer:
B
🗳️
Digo30sp
1 month ago
A company has an application that stores data in Amazon RDS instances. The application periodically
experiences surges of high traffic that cause performance problems. During periods of peak traffic,
a developer notices a reduction in query speed in all database queries.
The team’s technical
lead determines that a multi-threaded and scalable caching solution should be used to offload the
heavy read traffic. The solution needs to improve performance.
Which solution will meet these
requirements with the LEAST complexity?
- A. Use Amazon ElastiCache for Memcached to offload read requests from the main database.
- B. Replicate the data to Amazon DynamoDSet up a DynamoDB Accelerator (DAX) cluster.
- C. Configure the Amazon RDS instances to use Multi-AZ deployment with one standby instance. Offload read requests from the main database to the standby instance.
- D. Use Amazon ElastiCache for Redis to offload read requests from the main database.
Correct Answer:
A
🗳️
kashtelyan
3 weeks, 6 days agoDigo30sp
1 month ago
A developer must provide an API key to an AWS Lambda function to authenticate with a third-party
system. The Lambda function will run on a schedule. The developer needs to ensure that the API key
remains encrypted at rest.
Which solution will meet these requirements?
- A. Store the API key as a Lambda environment variable by using an AWS Key Management Service (AWS KMS) customer managed key.
- B. Configure the application to prompt the user to provide the password to the Lambda function on the first run.
- C. Store the API key as a value in the application code.
- D. Use Lambda@Edge and only communicate over the HTTPS protocol.
Correct Answer:
C
🗳️
Digo30sp
1 month ago
An IT department uses Amazon S3 to store sensitive images. After more than 1 year, the company moves
the images into archival storage. The company rarely accesses the images, but the company wants a
storage solution that maximizes resiliency. The IT department needs access to the images that have
been moved to archival storage within 24 hours.
Which solution will meet these requirements
MOST cost-effectively?
- A. Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.
- B. Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.
- C. Use S3 Intelligent-Tiering to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.
- D. Use S3 One Zone-Infrequent Access (S3 One Zone-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.
Correct Answer:
D
🗳️
hcsaba1982
1 week, 5 days agout18
5 days, 18 hours agoLearning4life
3 weeks, 1 day agoDigo30sp
1 month ago
A developer is building a serverless application by using the AWS Serverless Application Model (AWS
SAM). The developer is currently testing the application in a development environment. When the
application is nearly finished, the developer will need to set up additional testing and staging
environments for a quality assurance team.
The developer wants to use a feature of the AWS
SAM to set up deployments to multiple environments.
Which solution will meet these
requirements with the LEAST development effort?
- A. Add a configuration file in TOML format to group configuration entries to every environment. Add a table for each testing and staging environment. Deploy updates to the environments by using the sam deploy command and the --config-env flag that corresponds to each environment.
- B. Create additional AWS SAM templates for each testing and staging environment. Write a custom shell script that uses the sam deploy command and the --template-file flag to deploy updates to the environments.
- C. Create one AWS SAM configuration file that has default parameters. Perform updates to the testing and staging environments by using the --parameter-overrides flag in the AWS SAM CLI and the parameters that the updates will override.
- D. Use the existing AWS SAM template. Add additional parameters to configure specific attributes for the serverless function and database table resources that are in each environment. Deploy updates to the testing and staging environments by using the sam deploy command.
Correct Answer:
B
🗳️
NinjaCloud
5 days, 13 hours agoRameez1
2 weeks, 3 days agoPrakashM14
2 weeks, 3 days agoJing2023
3 weeks, 2 days agoDigo30sp
1 month ago
A developer is working on an application that processes operating data from IoT devices. Each IoT
device uploads a data file once every hour to an Amazon S3 bucket. The developer wants to
immediately process each data file when the data file is uploaded to Amazon S3.
The developer
will use an AWS Lambda function to process the data files from Amazon S3. The Lambda function is
configured with the S3 bucket information where the files are uploaded. The developer wants to
configure the Lambda function to immediately invoke after each data file is uploaded.
Which
solution will meet these requirements?
- A. Add an asynchronous invocation to the Lambda function. Select the S3 bucket as the source.
- B. Add an Amazon EventBridge event to the Lambda function. Select the S3 bucket as the source.
- C. Add a trigger to the Lambda function. Select the S3 bucket as the source.
- D. Add a layer to the Lambda function. Select the S3 bucket as the source.
Correct Answer:
B
🗳️
Digo30sp
1 month ago
A developer is setting up infrastructure by using AWS CloudFormation. If an error occurs when the
resources described in the Cloud Formation template are provisioned, successfully provisioned
resources must be preserved. The developer must provision and update the CloudFormation stack by
using the AWS CLI.
Which solution will meet these requirements?
- A. Add an --enable-termination-protection command line option to the create-stack command and the update-stack command.
- B. Add a --disable-rollback command line option to the create-stack command and the update-stack command.
- C. Add a --parameters ParameterKey=PreserveResources,ParameterValue=True command line option to the create-stack command and the update-stack command.
- D. Add a --tags Key=PreserveResources,Value=True command line option to the create-stack command and the update-stack command.
Correct Answer:
C
🗳️
kashtelyan
3 weeks, 6 days agoDigo30sp
1 month ago
A developer is building a serverless application that connects to an Amazon Aurora PostgreSQL
database. The serverless application consists of hundreds of AWS Lambda functions. During every
Lambda function scale out, a new database connection is made that increases database resource
consumption.
The developer needs to decrease the number of connections made to the database.
The solution must not impact the scalability of the Lambda functions.
Which solution will
meet these requirements?
- A. Configure provisioned concurrency for each Lambda function by setting the ProvisionedConcurrentExecutions parameter to 10.
- B. Enable cluster cache management for Aurora PostgreSQL. Change the connection string of each Lambda function to point to cluster cache management.
- C. Use Amazon RDS Proxy to create a connection pool to manage the database connections. Change the connection string of each Lambda function to reference the proxy.
- D. Configure reserved concurrency for each Lambda function by setting the ReservedConcurrentExecutions parameter to 10.
Correct Answer:
A
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is preparing to begin development of a new version of an application. The previous
version of the application is deployed in a production environment. The developer needs to deploy
fixes and updates to the current version during the development of the new version of the
application. The code for the new version of the application is stored in AWS
CodeCommit.
Which solution will meet these requirements?
- A. From the main branch, create a feature branch for production bug fixes. Create a second feature branch from the main branch for development of the new version.
- B. Create a Git tag of the code that is currently deployed in production. Create a Git tag for the development of the new version. Push the two tags to the CodeCommit repository.
- C. From the main branch, create a branch of the code that is currently deployed in production. Apply an IAM policy that ensures no other users can push or merge to the branch.
- D. Create a new CodeCommit repository for development of the new version of the application. Create a Git tag for the development of the new version.
Correct Answer:
A
🗳️
dilleman
3 weeks, 5 days agoDigo30sp
1 month ago
A developer is creating an AWS CloudFormation stack. The stack contains IAM resources with custom
names. When the developer tries to deploy the stack, they receive an InsufficientCapabilities
error.
What should the developer do to resolve this issue?
- A. Specify the CAPABILITY_AUTO_EXPAND capability in the CloudFormation stack.
- B. Use an administrators role to deploy IAM resources with CloudFormation.
- C. Specify the CAPABILITY_IAM capability in the CloudFormation stack.
- D. Specify the CAPABILITY_NAMED_IAM capability in the CloudFormation stack.
Correct Answer:
B
🗳️
Learning4life
3 weeks, 1 day agoDigo30sp
1 month ago
A company uses Amazon API Gateway to expose a set of APIs to customers. The APIs have caching
enabled in API Gateway. Customers need a way to invalidate the cache for each API when they test the
API.
What should a developer do to give customers the ability to invalidate the API cache?
- A. Ask the customers to use AWS credentials to call the InvalidateCache API operation.
- B. Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to send a request that contains the Cache-Control:max-age=0 HTTP header when they make an API call.
- C. Ask the customers to use the AWS SDK API Gateway class to invoke the InvalidateCache API operation.
- D. Attach an InvalidateCache policy to the IAM execution role that the customers use to invoke the API. Ask the customers to add the INVALIDATE_CACHE query string parameter when they make an API call.
Correct Answer:
D
🗳️
dezoito
2 weeks, 4 days agoPatel_ajay745
1 month agofordiscussionstwo
4 weeks, 1 day agoDigo30sp
1 month ago
A developer is creating an AWS Lambda function that will generate and export a file. The function
requires 100 MB of temporary storage for temporary files while running. These files will not be
needed after the function is complete.
How can the developer MOST efficiently handle the
temporary files?
- A. Store the files in Amazon Elastic Block Store (Amazon EBS) and delete the files at the end of the Lambda function.
- B. Copy the files to Amazon Elastic File System (Amazon EFS) and delete the files at the end of the Lambda function.
- C. Store the files in the /tmp directory and delete the files at the end of the Lambda function.
- D. Copy the files to an Amazon S3 bucket with a lifecycle policy to delete the files.
Correct Answer:
A
🗳️
Claire_KMT
1 week, 3 days agoLemonGremlin
1 week, 3 days ago
A company uses Amazon DynamoDB as a data store for its order management system. The company frontend
application stores orders in a DynamoDB table. The DynamoDB table is configured to send change
events to a DynamoDB stream. The company uses an AWS Lambda function to log and process the incoming
orders based on data from the DynamoDB stream.
An operational review reveals that the order
quantity of incoming orders is sometimes set to 0. A developer needs to create a dashboard that will
show how many unique customers this problem affects each day.
What should the developer do to
implement the dashboard?
-
A.
Grant the Lambda function’s execution role permissions to upload logs to Amazon CloudWatch
Logs. Implement a CloudWatch Logs Insights query that selects the number of unique customers
for orders with order quantity equal to 0 and groups the results in 1-day periods. Add the
CloudWatch Logs Insights query to a CloudWatch dashboard.
-
B.
Use Amazon Athena to query AWS CloudTrail API logs for API calls. Implement an Athena query
that selects the number of unique customers for orders with order quantity equal to 0 and
groups the results in 1-day periods. Add the Athena query to an Amazon CloudWatch
dashboard.
-
C.
Configure the Lambda function to send events to Amazon EventBridge. Create an EventBridge
rule that groups the number of unique customers for orders with order quantity equal to 0 in
1-day periods. Add a CloudWatch dashboard as the target of the rule.
- D. Turn on custom Amazon CloudWatch metrics for the DynamoDB stream of the DynamoDB table. Create a CloudWatch alarm that groups the number of unique customers for orders with order quantity equal to 0 in 1-day periods. Add the CloudWatch alarm to a CloudWatch dashboard.
Correct Answer:
D
🗳️
PrakashM14
6 days, 1 hour agoAngelinaWatson
1 week, 2 days agoClaire_KMT
1 week, 3 days ago
A developer needs to troubleshoot an AWS Lambda function in a development environment. The Lambda
function is configured in VPC mode and needs to connect to an existing Amazon RDS for SQL Server DB
instance. The DB instance is deployed in a private subnet and accepts connections by using port
1433.
When the developer tests the function, the function reports an error when it tries to
connect to the database.
Which combination of steps should the developer take to diagnose
this issue? (Choose two.)
-
A.
Check that the function’s security group has outbound access on port 1433 to the DB
instance’s security group. Check that the DB instance’s security group has inbound access on
port 1433 from the function’s security group.
-
B.
Check that the function’s security group has inbound access on port 1433 from the DB
instance’s security group. Check that the DB instance’s security group has outbound access
on port 1433 to the function’s security group.
-
C.
Check that the VPC is set up for a NAT gateway. Check that the DB instance has the public
access option turned on.
-
D.
Check that the function’s execution role permissions include rds:DescribeDBInstances,
rds:ModifyDBInstance. and rds:DescribeDBSecurityGroups for the DB instance.
- E. Check that the function’s execution role permissions include ec2:CreateNetworkInterface, ec2:DescribeNetworkInterfaces, and ec2:DeleteNetworkInterface.
Correct Answer:
AC
🗳️
mitch151
1 week, 2 days ago
A developer needs to launch a new Amazon EC2 instance by using the AWS CLI.
Which AWS CLI
command should the developer use to meet this requirement?
- A. aws ec2 bundle-instance
- B. aws ec2 start-instances
- C. aws ec2 confirm-product-instance
- D. aws ec2 run-instances
Correct Answer:
D
🗳️
Claire_KMT
1 week, 2 days ago
A developer needs to manage AWS infrastructure as code and must be able to deploy multiple identical
copies of the infrastructure, stage changes, and revert to previous versions.
Which approach
addresses these requirements?
- A. Use cost allocation reports and AWS OpsWorks to deploy and manage the infrastructure.
- B. Use Amazon CloudWatch metrics and alerts along with resource tagging to deploy and manage the infrastructure.
- C. Use AWS Elastic Beanstalk and AWS CodeCommit to deploy and manage the infrastructure.
- D. Use AWS CloudFormation and AWS CodeCommit to deploy and manage the infrastructure.
Correct Answer:
D
🗳️
Jing2023
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A developer is working on an AWS Lambda function that accesses Amazon DynamoDB. The Lambda function
must retrieve an item and update some of its attributes, or create the item if it does not exist.
The Lambda function has access to the primary key.
Which IAM permissions should the developer
request for the Lambda function to achieve this functionality?
-
A.
dynamodb:DeleleItem
dynamodb:GetItem
dynamodb:PutItem
-
B.
dynamodb:UpdateItem
dynamodb:GetItem
dynamodb:DescribeTable
-
C.
dynamodb:GetRecords
dynamodb:PutItem
dynamodb:UpdateTable
-
D.
dynamodb:UpdateItem
dynamodb:GetItem
dynamodb:PutItem
Correct Answer:
D
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 3 days ago
A developer has built a market application that stores pricing data in Amazon DynamoDB with Amazon
ElastiCache in front. The prices of items in the market change frequently. Sellers have begun
complaining that, after they update the price of an item, the price does not actually change in the
product listing.
What could be causing this issue?
- A. The cache is not being invalidated when the price of the item is changed.
- B. The price of the item is being retrieved using a write-through ElastiCache cluster.
- C. The DynamoDB table was provisioned with insufficient read capacity.
- D. The DynamoDB table was provisioned with insufficient write capacity.
Correct Answer:
A
🗳️
Claire_KMT
1 week, 2 days ago
A company requires that all applications running on Amazon EC2 use IAM roles to gain access to AWS
services. A developer is modifying an application that currently relies on IAM user access keys
stored in environment variables to access Amazon DynamoDB tables using boto, the AWS SDK for
Python.
The developer associated a role with the same permissions as the IAM user to the EC2
instance, then deleted the IAM user. When the application was restarted, the AWS
AccessDeniedException messages started appearing in the application logs. The developer was able to
use their personal account on the server to run DynamoDB API commands using the AWS CLI.
What
is the MOST likely cause of the exception?
- A. IAM policies might take a few minutes to propagate to resources.
- B. Disabled environment variable credentials are still being used by the application.
- C. The AWS SDK does not support credentials obtained using an instance role.
- D. The instance’s security group does not allow access to http://169.254.169.254.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days ago
A company has an existing application that has hardcoded database credentials. A developer needs to
modify the existing application. The application is deployed in two AWS Regions with an
active-passive failover configuration to meet company’s disaster recovery strategy.
The
developer needs a solution to store the credentials outside the code. The solution must comply with
the company’s disaster recovery strategy.
Which solution will meet these requirements in the
MOST secure way?
-
A.
Store the credentials in AWS Secrets Manager in the primary Region. Enable secret
replication to the secondary Region. Update the application to use the Amazon Resource Name
(ARN) based on the Region.
-
B.
Store credentials in AWS Systems Manager Parameter Store in the primary Region. Enable
parameter replication to the secondary Region. Update the application to use the Amazon
Resource Name (ARN) based on the Region.
-
C.
Store credentials in a config file. Upload the config file to an S3 bucket in the primary
Region. Enable Cross-Region Replication (CRR) to an S3 bucket in the secondary region.
Update the application to access the config file from the S3 bucket, based on the
Region.
- D. Store credentials in a config file. Upload the config file to an Amazon Elastic File System (Amazon EFS) file system. Update the application to use the Amazon EFS file system Regional endpoints to access the config file in the primary and secondary Regions.
Correct Answer:
A
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 3 days ago
A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon
CloudWatch API. When a call fails, no data is retrieved.
What best practice should first be
applied to address this issue?
- A. Contact AWS Support for a limit increase.
- B. Use the AWS CLI to get the metrics.
- C. Analyze the applications and remove the API call.
- D. Retry the call with exponential backoff.
Correct Answer:
D
🗳️
vruizrob
1 week agodidorins
1 week, 3 days agodidorins
1 week, 3 days ago
An application needs to use the IP address of the client in its processing. The application has been
moved into AWS and has been placed behind an Application Load Balancer (ALB). However, all the
client IP addresses now appear to be the same. The application must maintain the ability to scale
horizontally.
Based on this scenario, what is the MOST cost-effective solution to this
problem?
- A. Remove the application from the ALB. Delete the ALB and change Amazon Route 53 to direct traffic to the instance running the application.
- B. Remove the application from the ALCreate a Classic Load Balancer in its place. Direct traffic to the application using the HTTP protocol.
- C. Alter the application code to inspect the X-Forwarded-For header. Ensure that the code can work properly if a list of IP addresses is passed in the header.
- D. Alter the application code to inspect a custom header. Alter the client code to pass the IP address in the custom header.
Correct Answer:
C
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 3 days ago
A developer is designing a serverless application that customers use to select seats for a concert
venue. Customers send the ticket requests to an Amazon API Gateway API with an AWS Lambda function
that acknowledges the order and generates an order ID. The application includes two additional
Lambda functions: one for inventory management and one for payment processing. These two Lambda
functions run in parallel and write the order to an Amazon Dynamo DB table.
The application
must provide seats to customers according to the following requirements. If a seat is accidently
sold more than once, the first order that the application received must get the seat. In these
cases, the application must process the payment for only the first order. However, if the first
order is rejected during payment processing, the second order must get the seat. In these cases, the
application must process the payment for the second order.
Which solution will meet these
requirements?
-
A.
Send the order ID to an Amazon Simple Notification Service (Amazon SNS) FIFO topic that fans
out to one Amazon Simple Queue Service (Amazon SQS) FIFO queue for inventory management and
another SQS FIFO queue for payment processing.
-
B.
Change the Lambda function that generates the order ID to initiate the Lambda function for
inventory management. Then initiate the Lambda function for payment processing.
-
C.
Send the order ID to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the
Lambda functions for inventory management and payment processing to the topic.
- D. Deliver the order ID to an Amazon Simple Queue Service (Amazon SQS) queue. Configure the Lambda functions for inventory management and payment processing to poll the queue.
Correct Answer:
A
🗳️
Claire_KMT
1 week agoClaire_KMT
1 week, 2 days ago
An application uses AWS X-Ray to generate a large amount of trace data on an hourly basis. A
developer wants to use filter expressions to limit the returned results through user-specified
custom attributes.
How should the developer use filter expressions to filter the results in
X-Ray?
- A. Add custom attributes as annotations in the segment document.
- B. Add custom attributes as metadata in the segment document.
- C. Add custom attributes as new segment fields in the segment document.
- D. Create new sampling rules that are based on custom attributes.
Correct Answer:
A
🗳️
PrakashM14
5 days, 23 hours agoClaire_KMT
1 week agoClaire_KMT
1 week, 2 days ago
A web application is using Amazon Kinesis Data Streams for clickstream data that may not be consumed
for up to 12 hours.
How can the developer implement encryption at rest for data within the
Kinesis Data Streams?
- A. Enable SSL connections to Kinesis.
- B. Use Amazon Kinesis Consumer Library.
- C. Encrypt the data once it is at rest with a Lambda function.
- D. Enable server-side encryption in Kinesis Data Streams.
Correct Answer:
D
🗳️
Claire_KMT
1 week agoClaire_KMT
1 week, 2 days agodidorins
1 week, 2 days ago
An application is real-time processing millions of events that are received through an
API.
What service could be used to allow multiple consumers to process the data concurrently
and MOST cost-effectively?
- A. Amazon SNS with fanout to an SQS queue for each application
- B. Amazon SNS with fanout to an SQS FIFO (first-in, first-out) queue for each application
- C. Amazon Kinesis Firehose
- D. Amazon Kinesis Data Streams
Correct Answer:
D
🗳️
Claire_KMT
1 week, 2 days ago
Given the following AWS CloudFormation template:
What
is the MOST efficient way to reference the new Amazon S3 bucket from another AWS CloudFormation
template?
- A. Add an Export declaration to the Outputs section of the original template and use ImportValue in other templates.
- B. Add Exported: true to the Content.Bucket in the original template and use ImportResource in other templates.
- C. Create a custom AWS CloudFormation resource that gets the bucket name from the ContentBucket resource of the first stack.
- D. Use Fn::Include to include the existing template in other templates and use the ContentBucket resource directly.
Correct Answer:
A
🗳️
Claire_KMT
1 week, 2 days agopapason
1 week ago
A developer has built an application that inserts data into an Amazon DynamoDB table. The table is
configured to use provisioned capacity. The application is deployed on a burstable nano Amazon EC2
instance. The application logs show that the application has been failing because of a
ProvisionedThroughputExceededException error.
Which actions should the developer take to
resolve this issue? (Choose two.)
- A. Move the application to a larger EC2 instance.
- B. Increase the number of read capacity units (RCUs) that are provisioned for the DynamoDB table.
- C. Reduce the frequency of requests to DynamoDB by implementing exponential backoff.
- D. Increase the frequency of requests to DynamoDB by decreasing the retry delay.
- E. Change the capacity mode of the DynamoDB table from provisioned to on-demand.
Correct Answer:
CE
🗳️
Claire_KMT
1 week, 2 days agotapan666
1 week, 2 days ago
A company is hosting a workshop for external users and wants to share the reference documents with
the external users for 7 days. The company stores the reference documents in an Amazon S3 bucket
that the company owns.
What is the MOST secure way to share the documents with the external
users?
- A. Use S3 presigned URLs to share the documents with the external users. Set an expiration time of 7 days.
- B. Move the documents to an Amazon WorkDocs folder. Share the links of the WorkDocs folder with the external users.
- C. Create temporary IAM users that have read-only access to the S3 bucket. Share the access keys with the external users. Expire the credentials after 7 days.
- D. Create a role that has read-only access to the S3 bucket. Share the Amazon Resource Name (ARN) of this role with the external users.
Correct Answer:
A
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 2 days ago
A developer is planning to use an Amazon API Gateway and AWS Lambda to provide a REST API. The
developer will have three distinct environments to manage: development, test, and
production.
How should the application be deployed while minimizing the number of resources
to manage?
- A. Create a separate API Gateway and separate Lambda function for each environment in the same Region.
- B. Assign a Region for each environment and deploy API Gateway and Lambda to each Region.
- C. Create one API Gateway with multiple stages with one Lambda function with multiple aliases.
- D. Create one API Gateway and one Lambda function, and use a REST parameter to identify the environment.
Correct Answer:
C
🗳️
Claire_KMT
1 week, 2 days ago
A developer registered an AWS Lambda function as a target for an Application Load Balancer (ALB)
using a CLI command. However, the Lambda function is not being invoked when the client sends
requests through the ALB.
Why is the Lambda function not being invoked?
- A. A Lambda function cannot be registered as a target for an ALB.
- B. A Lambda function can be registered with an ALB using AWS Management Console only.
- C. The permissions to invoke the Lambda function are missing.
- D. Cross-zone is not enabled on the ALB.
Correct Answer:
C
🗳️
Claire_KMT
1 week, 2 days ago
A developer is creating an AWS Lambda function that will connect to an Amazon RDS for MySQL
instance. The developer wants to store the database credentials. The database credentials need to be
encrypted and the database password needs to be automatically rotated.
Which solution will
meet these requirements?
- A. Store the database credentials as environment variables for the Lambda function. Set the environment variables to rotate automatically.
- B. Store the database credentials in AWS Secrets Manager. Set up managed rotation on the database credentials.
- C. Store the database credentials in AWS Systems Manager Parameter Store as secure string parameters. Set up managed rotation on the parameters.
- D. Store the database credentials in the X-Amz-Security-Token parameter. Set up managed rotation on the parameter.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days ago
A developer wants to reduce risk when deploying a new version of an existing AWS Lambda function. To
test the Lambda function, the developer needs to split the traffic between the existing version and
the new version of the Lambda function.
Which solution will meet these requirements?
- A. Configure a weighted routing policy in Amazon Route 53. Associate the versions of the Lambda function with the weighted routing policy.
- B. Create a function alias. Configure the alias to split the traffic between the two versions of the Lambda function.
- C. Create an Application Load Balancer (ALB) that uses the Lambda function as a target. Configure the ALB to split the traffic between the two versions of the Lambda function.
- D. Create the new version of the Lambda function as a Lambda layer on the existing version. Configure the function to split the traffic between the two layers.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days ago
A developer has created a large AWS Lambda function. Deployment of the function is failing because
of an InvalidParameterValueException error. The error message indicates that the unzipped size of
the function exceeds the maximum supported value.
Which actions can the developer take to
resolve this error? (Choose two.)
- A. Submit a quota increase request to AWS Support to increase the function to the required size.
- B. Use a compression algorithm that is more efficient than ZIP.
- C. Break up the function into multiple smaller functions.
- D. Zip the .zip file twice to compress the file more.
- E. Move common libraries, function dependencies, and custom runtimes into Lambda layers.
Correct Answer:
CE
🗳️
A developer is troubleshooting an application in an integration environment. In the application, an
Amazon Simple Queue Service (Amazon SQS) queue consumes messages and then an AWS Lambda function
processes the messages. The Lambda function transforms the messages and makes an API call to a
third-party service.
There has been an increase in application usage. The third-party API
frequently returns an HTTP 429 Too Many Requests error message. The error message prevents a
significant number of messages from being processed successfully.
How can the developer
resolve this issue?
- A. Increase the SQS event source’s batch size setting.
- B. Configure provisioned concurrency for the Lambda function based on the third-party API’s documented rate limits.
- C. Increase the retry attempts and maximum event age in the Lambda function’s asynchronous configuration.
- D. Configure maximum concurrency on the SQS event source based on the third-party service’s documented rate limits.
Correct Answer:
A
🗳️
PrakashM14
5 days, 22 hours agoJing2023
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A company has a three-tier application that is deployed in Amazon Elastic Container Service (Amazon
ECS). The application is using an Amazon RDS for MySQL DB instance. The application performs more
database reads than writes.
During times of peak usage, the application’s performance
degrades. When this performance degradation occurs, the DB instance’s ReadLatency metric in Amazon
CloudWatch increases suddenly.
How should a developer modify the application to improve
performance?
- A. Use Amazon ElastiCache to cache query results.
- B. Scale the ECS cluster to contain more ECS instances.
- C. Add read capacity units (RCUs) to the DB instance.
- D. Modify the ECS task definition to increase the task memory.
Correct Answer:
A
🗳️
A company has an online web application that includes a product catalog. The catalog is stored in an
Amazon S3 bucket that is named DOC-EXAMPLE-BUCKET. The application must be able to list the objects
in the S3 bucket and must be able to download objects through an IAM policy.
Which policy
allows MINIMUM access to meet these requirements?
-
A.
-
B.
-
C.
-
D.
Correct Answer:
A
🗳️
A developer is writing an application to encrypt files outside of AWS before uploading the files to
an Amazon S3 bucket. The encryption must be symmetric and must be performed inside the
application.
How can the developer implement the encryption in the application to meet these
requirements?
- A. Create a data key in AWS Key Management Service (AWS KMS). Use the AWS Encryption SDK to encrypt the files.
- B. Create a Hash-Based Message Authentication Code (HMAC) key in AWS Key Management Service (AWS KMS). Use the AWS Encryption SDK to encrypt the files.
- C. Create a data key pair in AWS Key Management Service (AWS KMS). Use the AWS CLI to encrypt the files.
- D. Create a data key in AWS Key Management Service (AWS KMS). Use the AWS CLI to encrypt the files.
Correct Answer:
A
🗳️
Jing2023
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A developer is working on an application that is deployed on an Amazon EC2 instance. The developer
needs a solution that will securely transfer files from the application to an Amazon S3
bucket.
What should the developer do to meet these requirements in the MOST secure way?
- A. Create an IAM user. Create an access key for the IAM user. Store the access key in the application’s environment variables.
- B. Create an IAM role. Create an access key for the IAM role. Store the access key in the application’s environment variables.
- C. Create an IAM role. Configure the IAM role to access the specific Amazon S3 API calls the application requires. Associate the IAM role with the EC2 instance.
- D. Configure an S3 bucket policy for the S3 bucket. Configure the S3 bucket policy to allow access for the EC2 instance ID.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 2 days ago
A developer created a web API that receives requests by using an internet-facing Application Load
Balancer (ALB) with an HTTPS listener. The developer configures an Amazon Cognito user pool and
wants to ensure that every request to the API is authenticated through Amazon Cognito.
What
should the developer do to meet this requirement?
- A. Add a listener rule to the listener to return a fixed response if the Authorization header is missing. Set the fixed response to 401 Unauthorized.
- B. Create an authentication action for the listener rules of the ALSet the rule action type to authenticate-cognito. Set the OnUnauthenticatedRequest field to “deny.”
- C. Create an Amazon API Gateway API. Configure all API methods to be forwarded to the ALB endpoint. Create an authorizer of the COGNITO_USER_POOLS type. Configure every API method to use that authorizer.
- D. Create a new target group that includes an AWS Lambda function target that validates the Authorization header by using Amazon Cognito. Associate the target group with the listener.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days ago
A company recently deployed an AWS Lambda function. A developer notices an increase in the function
throttle metrics in Amazon CloudWatch.
What are the MOST operationally efficient solutions to
reduce the function throttling? (Choose two.)
- A. Migrate the function to Amazon Elastic Kubernetes Service (Amazon EKS).
- B. Increase the maximum age of events in Lambda.
- C. Increase the function’s reserved concurrency.
- D. Add the lambda:GetFunctionConcurrency action to the execution role.
- E. Request a service quota change for increased concurrency.
Correct Answer:
CE
🗳️
Claire_KMT
1 week, 2 days ago
A company is creating a REST service using an Amazon API Gateway with AWS Lambda integration. The
service must run different versions for testing purposes.
What would be the BEST way to
accomplish this?
- A. Use an X-Version header to denote which version is being called and pass that header to the Lambda function(s).
- B. Create an API Gateway Lambda authorizer to route API clients to the correct API version.
- C. Create an API Gateway resource policy to isolate versions and provide context to the Lambda function(s).
- D. Deploy the API versions as unique stages with unique endpoints and use stage variables to provide further context.
Correct Answer:
D
🗳️
Claire_KMT
1 week, 2 days ago
A company is using AWS CodePipeline to deliver one of its applications. The delivery pipeline is
triggered by changes to the main branch of an AWS CodeCommit repository and uses AWS CodeBuild to
implement the test and build stages of the process and AWS CodeDeploy to deploy the
application.
The pipeline has been operating successfully for several months and there have
been no modifications. Following a recent change to the application’s source code, AWS CodeDeploy
has not deployed the updated application as expected.
What are the possible causes? (Choose
two.)
- A. The change was not made in the main branch of the AWS CodeCommit repository.
- B. One of the earlier stages in the pipeline failed and the pipeline has terminated.
- C. One of the Amazon EC2 instances in the company’s AWS CodePipeline cluster is inactive.
- D. The AWS CodePipeline is incorrectly configured and is not invoking AWS CodeDeploy.
- E. AWS CodePipeline does not have permissions to access AWS CodeCommit.
Correct Answer:
AB
🗳️
tapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A developer is building a serverless application by using AWS Serverless Application Model (AWS SAM)
on multiple AWS Lambda functions. When the application is deployed, the developer wants to shift 10%
of the traffic to the new deployment of the application for the first 10 minutes after deployment.
If there are no issues, all traffic must switch over to the new version.
Which change to the
AWS SAM template will meet these requirements?
- A. Set the Deployment Preference Type to Canary10Percent10Minutes. Set the AutoPublishAlias property to the Lambda alias.
- B. Set the Deployment Preference Type to Linear10PercentEvery10Minutes. Set AutoPublishAlias property to the Lambda alias.
- C. Set the Deployment Preference Type to Canary10Percent10Minutes. Set the PreTraffic and PostTraffic properties to the Lambda alias.
- D. Set the Deployment Preference Type to Linear10PercentEvery10Minutes. Set PreTraffic and PostTraffic properties to the Lambda alias.
Correct Answer:
B
🗳️
NinjaCloud
2 days, 17 hours agoClaire_KMT
1 week, 2 days agodidorins
1 week, 2 days agoLemonGremlin
1 week, 3 days ago
An AWS Lambda function is running in a company’s shared AWS account. The function needs to perform
an additional ec2:DescribeInstances action that is directed at the company’s development accounts. A
developer must configure the required permissions across the accounts.
How should the
developer configure the permissions to adhere to the principle of least privilege?
-
A.
Create an IAM role in the shared account. Add the ec2:DescribeInstances permission to the
role. Establish a trust relationship between the development accounts for this role. Update
the Lambda function IAM role in the shared account by adding the ec2:DescribeInstances
permission to the role.
-
B.
Create an IAM role in the development accounts. Add the ec2:DescribeInstances permission to
the role. Establish a trust relationship with the shared account for this role. Update the
Lambda function IAM role in the shared account by adding the iam:AssumeRole permissions.
-
C.
Create an IAM role in the shared account. Add the ec2:DescribeInstances permission to the
role. Establish a trust relationship between the development accounts for this role. Update
the Lambda function IAM role in the shared account by adding the iam:AssumeRole
permissions.
- D. Create an IAM role in the development accounts. Add the ec2:DescribeInstances permission to the role. Establish a trust relationship with the shared account for this role. Update the Lambda function IAM role in the shared account by adding the ec2:DescribeInstances permission to the role.
Correct Answer:
B
🗳️
PrakashM14
5 days, 21 hours agoKowsik_shashi
1 week, 1 day agolbaker12
1 week, 2 days agoClaire_KMT
1 week, 2 days agodidorins
1 week, 2 days ago
A developer is building a new application that will be deployed on AWS. The developer has created an
AWS CodeCommit repository for the application. The developer has initialized a new project for the
application by invoking the AWS Cloud Development Kit (AWS CDK) cdk init command.
The
developer must write unit tests for the infrastructure as code (IaC) templates that the AWS CDK
generates. The developer also must run a validation tool across all constructs in the CDK
application to ensure that critical security configurations are activated.
Which combination
of actions will meet these requirements with the LEAST development overhead? (Choose two.)
-
A.
Use a unit testing framework to write custom unit tests against the cdk.out file that the
AWS CDK generates. Run the unit tests in a continuous integration and continuous delivery
(CI/CD) pipeline that is invoked after any commit to the repository.
-
B.
Use the CDK assertions module to integrate unit tests with the application. Run the unit
tests in a continuous integration and continuous delivery (CI/CD) pipeline that is invoked
after any commit to the repository.
-
C.
Use the CDK runtime context to set key-value pairs that must be present in the cdk.out file
that the AWS CDK generates. Fail the stack synthesis if any violations are present.
-
D.
Write a script that searches the application for specific key configuration strings.
Configure the script to produce a report of any security violations.
- E. Use the CDK Aspects class to create custom rules to apply to the CDK application. Fall the stack synthesis if any violations are present.
Correct Answer:
BE
🗳️
Claire_KMT
1 week, 2 days ago
An online sales company is developing a serverless application that runs on AWS. The application
uses an AWS Lambda function that calculates order success rates and stores the data in an Amazon
DynamoDB table. A developer wants an efficient way to invoke the Lambda function every 15
minutes.
Which solution will meet this requirement with the LEAST development effort?
- A. Create an Amazon EventBridge rule that has a rate expression that will run the rule every 15 minutes. Add the Lambda function as the target of the EventBridge rule.
- B. Create an AWS Systems Manager document that has a script that will invoke the Lambda function on Amazon EC2. Use a Systems Manager Run Command task to run the shell script every 15 minutes.
- C. Create an AWS Step Functions state machine. Configure the state machine to invoke the Lambda function execution role at a specified interval by using a Wait state. Set the interval to 15 minutes.
- D. Provision a small Amazon EC2 instance. Set up a cron job that invokes the Lambda function every 15 minutes.
Correct Answer:
B
🗳️
Claire_KMT
1 week, 2 days agodidorins
1 week, 2 days agoLemonGremlin
1 week, 3 days ago
A company deploys a photo-processing application to an Amazon EC2 instance. The application needs to
process each photo in less than 5 seconds. If processing takes longer than 5 seconds, the company’s
development team must receive a notification.
How can a developer implement the required time
measurement and notification with the LEAST operational overhead?
-
A.
Create an Amazon CloudWatch custom metric. Each time a photo is processed, publish the
processing time as a metric value. Create a CloudWatch alarm that is based on a static
threshold of 5 seconds. Notify the development team by using an Amazon Simple Notification
Service (Amazon SNS) topic.
-
B.
Create an Amazon Simple Queue Service (Amazon SQS) queue. Each time a photo is processed,
publish the processing time to the queue. Create an application to consume from the queue
and to determine whether any values are more than 5 seconds. Notify the development team by
using an Amazon Simple Notification Service (Amazon SNS) topic.
-
C.
Create an Amazon CloudWatch custom metric. Each time a photo is processed, publish the
processing time as a metric value. Create a CloudWatch alarm that enters ALARM state if the
average of values is greater than 5 seconds. Notify the development team by sending an
Amazon Simple Email Service (Amazon SES) message.
- D. Create an Amazon Kinesis data stream. Each time a photo is processed, publish the processing time to the data stream. Create an Amazon CloudWatch alarm that enters ALARM state if any values are more than 5 seconds. Notify the development team by using an Amazon Simple Notification Service (Amazon SNS) topic.
Correct Answer:
A
🗳️
tapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A company is using AWS Elastic Beanstalk to manage web applications that are running on Amazon EC2
instances. A developer needs to make configuration changes. The developer must deploy the changes to
new instances only.
Which types of deployment can the developer use to meet this requirement?
(Choose two.)
- A. All at once
- B. Immutable
- C. Rolling
- D. Blue/green
- E. Rolling with additional batch
Correct Answer:
BD
🗳️
tapan666
1 week, 2 days ago
A developer needs to use Amazon DynamoDB to store customer orders. The developer’s company requires
all customer data to be encrypted at rest with a key that the company generates.
What should
the developer do to meet these requirements?
-
A.
Create the DynamoDB table with encryption set to None. Code the application to use the key
to decrypt the data when the application reads from the table. Code the application to use
the key to encrypt the data when the application writes to the table.
-
B.
Store the key by using AWS Key Management Service (AWS KMS). Choose an AWS KMS customer
managed key during creation of the DynamoDB table. Provide the Amazon Resource Name (ARN) of
the AWS KMS key.
-
C.
Store the key by using AWS Key Management Service (AWS KMS). Create the DynamoDB table with
default encryption. Include the kms:Encrypt parameter with the Amazon Resource Name (ARN) of
the AWS KMS key when using the DynamoDB software development kit (SDK).
- D. Store the key by using AWS Key Management Service (AWS KMS). Choose an AWS KMS AWS managed key during creation of the DynamoDB table. Provide the Amazon Resource Name (ARN) of the AWS KMS key.
Correct Answer:
B
🗳️
tapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A company uses AWS CloudFormation to deploy an application that uses an Amazon API Gateway REST API
with AWS Lambda function integration. The application uses Amazon DynamoDB for data persistence. The
application has three stages: development, testing, and production. Each stage uses its own DynamoDB
table.
The company has encountered unexpected issues when promoting changes to the production
stage. The changes were successful in the development and testing stages. A developer needs to route
20% of the traffic to the new production stage API with the next production release. The developer
needs to route the remaining 80% of the traffic to the existing production stage. The solution must
minimize the number of errors that any single customer experiences.
Which approach should the
developer take to meet these requirements?
-
A.
Update 20% of the planned changes to the production stage. Deploy the new production stage.
Monitor the results. Repeat this process five times to test all planned changes.
-
B.
Update the Amazon Route 53 DNS record entry for the production stage API to use a weighted
routing policy. Set the weight to a value of 80. Add a second record for the production
domain name. Change the second routing policy to a weighted routing policy. Set the weight
of the second policy to a value of 20. Change the alias of the second policy to use the
testing stage API.
-
C.
Deploy an Application Load Balancer (ALB) in front of the REST API. Change the production
API Amazon Route 53 record to point traffic to the ALB. Register the production and testing
stages as targets of the ALB with weights of 80% and 20%, respectively.
- D. Configure canary settings for the production stage API. Change the percentage of traffic directed to canary deployment to 20%. Make the planned updates to the production stage. Deploy the changes
Correct Answer:
D
🗳️
Claire_KMT
1 week, 2 days ago
A developer has created a data collection application that uses Amazon API Gateway, AWS Lambda, and
Amazon S3. The application’s users periodically upload data files and wait for the validation status
to be reflected on a processing dashboard. The validation process is complex and time-consuming for
large files.
Some users are uploading dozens of large files and have to wait and refresh the
processing dashboard to see if the files have been validated. The developer must refactor the
application to immediately update the validation result on the user’s dashboard without reloading
the full dashboard.
What is the MOST operationally efficient solution that meets these
requirements?
-
A.
Integrate the client with an API Gateway WebSocket API. Save the user-uploaded files with
the WebSocket connection ID. Push the validation status to the connection ID when the
processing is complete to initiate an update of the user interface.
-
B.
Launch an Amazon EC2 micro instance, and set up a WebSocket server. Send the user-uploaded
file and user detail to the EC2 instance after the user uploads the file. Use the WebSocket
server to send updates to the user interface when the uploaded file is processed.
-
C.
Save the user’s email address along with the user-uploaded file. When the validation process
is complete, send an email notification through Amazon Simple Notification Service (Amazon
SNS) to the user who uploaded the file.
- D. Save the user-uploaded file and user detail to Amazon DynamoDB. Use Amazon DynamoDB Streams with Amazon Simple Notification Service (Amazon SNS) push notifications to send updates to the browser to update the user interface.
Correct Answer:
A
🗳️
PrakashM14
5 days, 21 hours agotapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A company’s developer is creating an application that uses Amazon API Gateway. The company wants to
ensure that only users in the Sales department can use the application. The users authenticate to
the application by using federated credentials from a third-party identity provider (IdP) through
Amazon Cognito. The developer has set up an attribute mapping to map an attribute that is named
Department and to pass the attribute to a custom AWS Lambda authorizer.
To test the access
limitation, the developer sets their department to Engineering in the IdP and attempts to log in to
the application. The developer is denied access. The developer then updates their department to
Sales in the IdP and attempts to log in. Again, the developer is denied access. The developer checks
the logs and discovers that access is being denied because the developer’s access token has a
department value of Engineering.
Which of the following is a possible reason that the
developer’s department is still being reported as Engineering instead of Sales?
- A. Authorization caching is enabled in the custom Lambda authorizer.
- B. Authorization caching is enabled on the Amazon Cognito user pool.
- C. The IAM role for the custom Lambda authorizer does not have a Department tag.
- D. The IAM role for the Amazon Cognito user pool does not have a Department tag.
Correct Answer:
A
🗳️
PrakashM14
5 days, 21 hours agotapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A company has migrated an application to Amazon EC2 instances. Automatic scaling is working well for
the application user interface. However, the process to deliver shipping requests to the company’s
warehouse staff is encountering issues. Duplicate shipping requests are arriving, and some requests
are lost or arrive out of order.
The company must avoid duplicate shipping requests and must
process the requests in the order that the requests arrive. Requests are never more than 250 KB in
size and take 5-10 minutes to process. A developer needs to rearchitect the application to improve
the reliability of the delivery and processing of the requests.
What should the developer do
to meet these requirements?
-
A.
Create an Amazon Kinesis Data Firehose delivery stream to process the requests. Create an
Amazon Kinesis data stream. Modify the application to write the requests to the Kinesis data
stream.
-
B.
Create an AWS Lambda function to process the requests. Create an Amazon Simple Notification
Service (Amazon SNS) topic. Subscribe the Lambda function to the SNS topic. Modify the
application to write the requests to the SNS topic.
-
C.
Create an AWS Lambda function to process the requests. Create an Amazon Simple Queue Service
(Amazon SQS) standard queue. Set the SQS queue as an event source for the Lambda function.
Modify the application to write the requests to the SQS queue.
- D. Create an AWS Lambda function to process the requests. Create an Amazon Simple Queue Service (Amazon SQS) FIFO queue. Set the SQS queue as an event source for the Lambda function. Modify the application to write the requests to the SQS queue.
Correct Answer:
D
🗳️
tapan666
1 week, 2 days agoClaire_KMT
1 week, 2 days ago
A developer is creating a machine learning (ML) pipeline in AWS Step Functions that contains AWS
Lambda functions. The developer has configured an Amazon Simple Queue Service (Amazon SQS) queue to
deliver ML model parameters to the ML pipeline to train ML models. The developer uploads the trained
models are uploaded to an Amazon S3 bucket.
The developer needs a solution that can locally
test the ML pipeline without making service integration calls to Amazon SQS and Amazon
S3.
Which solution will meet these requirements?
- A. Use the Amazon CodeGuru Profiler to analyze the Lambda functions used in the AWS Step Functions pipeline.
- B. Use the AWS Step Functions Local Docker Image to run and locally test the Lambda functions.
- C. Use the AWS Serverless Application Model (AWS SAM) CLI to run and locally test the Lambda functions.
- D. Use AWS Step Functions Local with mocked service integrations.
Correct Answer:
D
🗳️
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